#1 Steve Ballmer
Net worth: $23.5 billion
Overall rank among Forbes billionaires: No. 26
Role: Owner of the Los Angeles Clippers
Age: 59
One thing to know: The former CEO of Microsoft Steve Ballmer bought the L.A. Clippers in 2014 for a record $2 billion. He now goes nuts at games and even dunks basketballs at halftime like a mascot.
Source: Forbes
#2 Mukesh Ambani
Net worth: $19.3 billion
Overall rank among Forbes billionaires: No. 36
Role: Owner of the Mumbai Indians, a cricket team in the India Premier League.
Age: 58
One thing to know: Ambani purchased the Mumbai Indians in 2008. They have been champions of the IPL in two of the last three seasons.
Source: Forbes
#3 Paul Allen
Net worth: $17.5 billion
Overall rank among Forbes billionaires: No. 40
Role: Owner of the Seattle Seahawks, Portland Trail Blazers, and Seattle Sounders.
Age: 63
One thing to know: Allen, a co-founder of Microsoft, purchased the Trail Blazers for $70 million in 1988. They are now worth $975 million.
Source: Forbes
#4 Dietrich Mateschitz
Net worth: $13.2 billion
Overall rank among Forbes billionaires: No. 64
Role: Co-founder of Red Bull
Age: 71
One thing to know: Red Bull has kept close ties to all manner of extreme sports and has been a strong presence as a team owner in Formula 1 racing.
Source: Forbes
#5 Stephen Ross
Net worth: $12.0 billion
Overall rank among Forbes billionaires: No. 80
Role: Owner of the Miami Dolphins
Age: 75
One thing to know: In 2009 Ross completed the purchase of 95% of the Dolphins for a then-record $1.1 billion.
Source: Forbes
#6 Philip Anschutz
Net worth: $9.7 billion
Overall rank among Forbes billionaires: No. 108
Role: Owner of the Los Angeles Kings
Age: 76
One thing to know: In addition to the Kings, Anschultz is also a minority owner of the Los Angeles Lakers.
Source: Forbes
#7 Hasso Plattner
Net worth: $9.5 billion
Overall rank among Forbes billionaires: No. 113
Role: Owner of the San Jose Sharks
Age: 72
One thing to know: Plattner was the co-founder of SAP and also owns several golf course.
Source: Forbes
#8 Stan Kroenke
Net worth: $7.7 billion
Overall rank among Forbes billionaires: No. 148
Role: Owner of the
Age: 68
One thing to know: Kroenke recently won the NFL's race back to Los Angeles with his Rams set to play there in 2016. In addition, he also owns the Denver Nuggets, Colorado Avalanche, and Colorado Rapids.
Source: Forbes
#9t Mikhail Prokhorov
Net worth: $7.6 billion
Overall rank among Forbes billionaires: No. 151
Role: Owner of the Brooklyn Nets
Age: 50
One thing to know: Prokhorov purchased the Nets for $200 million in 2010. Now that they are in Brooklyn, the team has an estimated value of $1.7 billion.
Source: Forbes
#9t Roman Abramovich
Net worth: $7.6 billion
Overall rank among Forbes billionaires: No. 151
Role: Owner of Chesea F.C.
Age: 49
One thing to know: Chelsea has won four of their five league championships since Abramovich purchased control of the club in 2003.
Source: Forbes
#11 Micky Arison
Net worth: $7.1 billion
Overall rank among Forbes billionaires: No. 167
Role: Owner of the Miami Heat
Age: 66
One thing to know: Arison's father was a co-founder of Carnival Cruise Lines. Arison took control of the Heat in 1995. The team has won three championships with Arison as owner.
Source: Forbes
#12 Silvio Berlusconi
Net worth: $6.2 billion
Overall rank among Forbes billionaires: No. 188
Role: Owner of AC Milan football club
Age: 79
One thing to know: The former prime minister of Italy, Berlusconi made his fortune in media, bringing American shows like "The Smurfs" and "Baywatch" to Italy.
Source: Forbes
#13 Shahid Khan
Net worth: $5.9 billion
Overall rank among Forbes billionaires: No. 205
Role: Owner of Jacksonville Jaguars and Fulham Football Club.
Age: 65
One thing to know: Since Khan purchased the Jaguars in 2011, they have averaged 3.8 wins. In addition, Fulham was recently delegated to the second division of English soccer.
Source: Forbes
#14 Ted Lerner
Net worth: $5.5 billion
Overall rank among Forbes billionaires: No. 233
Role: Owner of the Washington Nationals
Age: 90
One thing to know: After Major League Baseball purchased the Montreal Expos for $120 million, they then moved the franchise to Washington, DC, and sold the team to Lerner for $450 million. The team is now worth an estimated $1.3 billion.
Source: Forbes
#15 Joe Lewis
Net worth: $5.3 billion
Overall rank among Forbes billionaires: No. 248
Role: Co-owner of Tottenham Hotspur in the English Premier League.
Age: 79
One thing to know: In addition to his ownership of the Spurs, Lewis is also helping to develop the new home of the US Tennis Association near Orlando and a training facility for Orlando City S.C. in Major League Soccer.
Source: Forbes
#16t James Dolan family
Net worth: $5 billion
Overall rank among Forbes billionaires: No. 270
Role: CEO of Cablevision
Age: 60
One thing to know: As the chairman of Madison Square Garden, Dolan is tasked with managing their sports properties, including the Knicks, Rangers, and Liberty.
Source: Forbes
#16t Jerry Jones
Net worth: $5 billion
Overall rank among Forbes billionaires: No. 270
Role: Owner of the Dallas Cowboys
Age: 73
One thing to know: In 1989, Jerry Jones purchased the Dallas Cowboys for $140 million, the first time anybody had ever paid more than $100 million for a team. The Cowboys are now worth $4 billion.
Source: Forbes
#18 Dan Gilbert
Net worth: $4.9 billion
Overall rank among Forbes billionaires: No. 286
Role: Owner of the Cleveland Cavaliers
Age: 54
One thing to know: In 2010, Gilbert famously wrote an angry letter in Comic Sans font after LeBron James signed with the Miami Heat. The letter guaranteed that the Cavs would win a championship "BEFORE THE SELF-TITLED FORMER 'KING' WINS ONE." Of course that didn't happen, and when James returned to the Cavs, the letter was taken down.
Source: Forbes
#19t Michael & Marian Ilitch & family
Net worth: $4.8 billion
Overall rank among Forbes billionaires: No. 298
Role: Owner of the Detroit Tigers and Detroit Red Wings
Age: 86
One thing to know: Ilitch made his fortune as the founder of Little Caesars Pizza.
Source: Forbes
#19t Robert Kraft
Net worth: $4.8 billion
Overall rank among Forbes billionaires: No. 298
Role: Owner of the New England Patriots
Age: 74
One thing to know: In 1994, Kraft purchased Foxboro Stadium and then blocked an attempt to move the team. When he wouldn't let the previous owners out of their lease, he instead purchased the struggling franchise for a then-record $175 million.
Source: Forbes
Bonus: Michael Jordan
Net worth: $1.1 billion
Role: Owner of the Charlotte Hornets
Age: 53
One thing to know: Jordan is on the list of billionaires for the second-straight year. He ranks 61st among sports owners and No. 1,577 overall.
Source: Forbes