||Possible reasons for being underrated
||9 PGA titles including 2 Masters victories—more than any other golfer except Rory McIlroy in the same time span—and yet the media downplay his achievements and ostracize him
||he has criticized homosexuality. Also other than the two Masters titles Watson has not won any "major" championships.
||honored as the greatest football player of all time in 2002 by the Sporting News, today Brown is opposed by the media while lesser players are promoted
||Brown supported Donald Trump after he was elected, and defended Trump against John Lewis.
||Led an average team to one of the best records ever in 2014 and an unexpected NBA Championship, and Curry may be the finest NBA shooter of all-time. Yet he received 0 out of 10 votes for MVP in the finals in 2015, which was given to a teammate who was not even initially a starter in the series. Curry led his team in scoring, assists, and steals during the 2014-2015 season.
||he's an outspoken Christian who even engraves a Bible verse on his shoes, departing Nike to do that.
||"he put together the greatest season since Australian champion Rod Laver won the Grand Slam in 1969. Despite that, mainstream reports after his US Open win virtually failed to mention the Serb’s remarkable season ...."
||he's one of the Greatest Conservative Sports Stars; also American media usually does not follow sports where there are no American superstars, and tennis has not had a men's superstar since John McEnroe (it is dominated by Europeans)
||Led an average team to five NBA Championships—more than double the number won by Lebron James. Duncan also won these championships without supercoach Phil Jackson, who coached the Michael Jordan and Kobe Bryant teams to victory. Yet the media give Duncan relatively little attention.
||Plays in a small market (San Antonio, though one of the ten largest cities in the US, is barely a top 50 media market due to the lack of large suburbs)
||One of England's best soccer players ever, he has won eight major trophies with his former club Chelsea, was named runner-up for the Ballon d'Or in 2005, meaning that he was officially the second-best player in the world for that year, and has scored over 200 goals in his career; all these achievements far outshine those of his countrymen Steven Gerrard and David Beckham, but the latter two often receive more adulation from the media
||he is a conservative; also though soccer is popular worldwide it has a limited United States following
||Seven batting titles, three championships, an amazing home run-to-strikeout ratio and overall statistics superior to nearly everyone; Ty Cobb said Musial "is the closest to being perfect in the game today" in 1952, Willie Mays said that "Musial is the best all around hitter," and yet he has always been underpublicized by the media. An acclaimed sportswriter even wrote a book trying to understand why "Stan Musial is Largely Forgotten," as the title of a book review put it. ESPN once called him one of the five best players of all-time  and Bill James ranked him as #7 all-time. Stan Musial even hit .342 lifetime against lefty Sandy Koufax.
||a devout Catholic who played in the conservative Midwest, in a small market (however, the St. Louis Cardinals have a national following due to being the westernmost franchise outside of the California teams for two decades)
||the best defensive football player ever, he twice won the AP Defensive Player of the Year award, set an NFL career record at the time of 198 sacks, appeared 13 consecutive times in the Pro Bowl, and won a Super Bowl championship
||spoke out against the homosexual agenda and was hated by homosexual activists for it; however, during his career he led his team to only one Super Bowl victory (and that team, the Green Bay Packers, plays in the smallest media market of any North American professional sports franchise), but he was inducted into both the College and NFL Halls of Fame
||one of very few baseball superstars to exceed 500 home runs and 3,000 base hits
||gave the media the silent treatment, and a sneaker company dared to run him for president in a humorous campaign against liberal Bill Clinton in 1996
||omitted from the Hall of Fame despite winning the Heisman Trophy and then leading the mediocre Oakland/Los Angeles Raiders to two spectacular Super Bowl victories; Joe Namath won only one Super Bowl and yet he's in the Hall of Fame, and so is Troy Aikman, despite mediocre statistics with phenomenal teams
||a Mexican American who exemplified the American Dream and never asked for sympathy despite being raised by two blind parents, whom he praised immensely
||omitted from the Hall of Fame despite being only the 19th player to surpass both 10,000 points and rebounds. Laimbeer was the finest long-range shooting center in history, and led an average team to two championships in a highly competitive era.
||a conservative who defeated both Michael Jordan and Magic Johnson and won two NBA championships (including sweeping Magic's Lakers in four games), Laimbeer was demonized by the liberal media; also, the Pistons were known and criticized for their aggressive (and sometimes dirty) style of play
||won double gold medals in women's diving at back-to-back Olympics, she won her second pair of gold medals five months after she gave birth
||outside of the Olympic games, diving is not followed by the general public
||"almost complete dominance of the 2013 World Championships, winning four gold medals from six available" in the biathlon
||the biathlon includes the use of guns, which liberals do not like; also outside of the Olympics (and even during it) the sport has a small following
||Three-time NBA Defensive Player of the Year, five-time All-NBA First Team, led the league in rebounds five times and blocks twice, won the NBA slam dunk contest in 2008, and led the underdog Orlando Magic to the NBA Finals in 2009. Will be a first-ballot Hall of Famer, but has often been unjustly blamed for his team's failures by the media, particularly between 2012 and 2015, even though he had been dealing with many injuries at the time
||he is a deeply religious Christian (though he has five children by five different women, never marrying any of them); furthermore his injuries have limited his ability and he has never won an NBA title. Also has had conflicts with team ownership (demanding to be traded on several occasions), coaches (had several run ins with Jeff Van Gundy during their tenure in Orlando) and teammates (including James Harden, who generally gets along with most teammates)
||two stunning championships in the golf majors, including defeating Tiger Woods in his prime and winning the British Open in 2014, plus 12 overall PGA victories with a 4-1 record in playoffs
||reads Bible verses during tournaments
||gained the five-most overall yardage of any NFL player, despite playing for weak teams; he gained more yardage than many Hall of Famers, and yet he was not voted into the NFL Hall of Fame for five years until 2015. He is one of only 9 players ever to win the Heisman Trophy and be inducted into the NFL Hall of Fame.
||preached his Christian faith and played Gospel music in the Raiders weight room
||he is the only football player to gain more than 4,000 yards in rushing, pass receiving, and returning kickoffs, and yet is not in the Hall of Fame. His overall yardage gained is better than numerous players who are in the Hall of Fame.
||outspoken Christian who also dared to compete with the NFL, and who also praised Donald Trump. Also the NFL does not recognize statistics from rival leagues, such as the USFL for which Walker played (except for the AFL with which it formally merged).
||The finest women's athlete of all-time and likely to break the record for the most grand slam victories in women's tennis despite playing in a highly competitive era, but the media are stingy in giving her full credit
||a devout Christian (though her recent child was conceived and birth out of wedlock, but she has since married her child's father); also outside of the major championships  tennis is not heavily followed in the United States, especially since the US has no major men's stars and only Serena and her sister Venus on the women's side
||Has scored over 200 career goals, has won nine major trophies, was the Bundesliga's top goalscorer twice, placed fourth in the 2015 Ballon d'Or rankings, and holds the record for the shortest amount of time taken to score five goals in a game, but often doesn't receive the credit he deserves
||a staunch Catholic; also though soccer is popular worldwide it has a limited United States following
||Has the record for most receiving yards, which was formerly by Jerry Rice (who latter admitted he cheated), & also set the NFL records for consecutive 100-yard games (8) and consecutive games with 10 or more receptions (4)
||Is a Christian (probably why he retired early too); also during his career Detroit usually failed to make the playoffs
||2016 World Series MVP, first player on the Chicago Cubs ever to win the title. Mainstream media ignored the fact that he has a very strong Christian faith, and that he used his fame as MVP to boldly proclaim the gospel.
||As mentioned, he is a very strong Christian; furthermore he played most of his career with the Tampa Bay Rays, one of the MLB's poorest-performing franchises
||Was undefeated in boxing and was even inducted into the New Mexico Boxing Hall of Fame in June of 2013. She won the WBAN Fighter of the Year for 2007 and 2010. She holds a world title in Boxing and Mixed Martial Arts. She also gave bully (see Overrated Sports Stars) Ronda Rousey her first loss. That match was often considered one of the biggest upsets in MMA history.
||A devout Christian who was even given the nickname "The Preacher's Daughter." She also supported Republican Donald Trump for U.S. president. Also though MMA is growing in popularity, the women's side has few well-known names, and the two best known ones have their own issues (Rousey has failed to comeback from her loss to Holm, while Christine "Cyborg" Santos has had several suspensions for doping)
||World Series champion in 2010 and 2012 and was in the top 25 of his league's MVP vote three times.
||A devout Christian and a strong Trump supporter who criticized those who protested and caused chaos because of President Trump's refugee ban order.