31 May 2007 (Thursday)
- Basketball:
- Florida Gators head coach Billy Donovan has accepted a five-year, $27.5-million contract to become the head coach of the Orlando Magic. In doing so, he turns down a seven-year extension with unknown terms rumored to range from $3–$3.75m per year from the Gators. (Orlando Sentinel) (ESPN.com)
- NBA Playoffs: Eastern Conference Finals:
- Cleveland Cavaliers 109, Detroit Pistons 107, 2OT, Cleveland leads series 3–2
- In one of the most-impressive performances in playoff history, LeBron James scores 29 of the 30 points the Cavs score in the game's last 16 minutes. He finishes with 48 points, including a game-winning layup with 2.2 seconds left in the second overtime to win the game. (AP via Yahoo)
- American football:
- A group of investors, including dot-com billionaire and NBA team owner Mark Cuban, announces that they are exploring the possibility of creating a professional Football league that would compete with the National Football League. Among the few details are the intention to play on Fridays, and a preliminary designation for the league of "UFL". There are no details on when they would begin play. (ESPN.com)
- Cricket:
- 2007 ICC World Cricket League Division Three
- Semifinals
Argentina 103/6 (34.2 ov.) beat 
Cayman Islands 102 (39.3 ov.) by 4 wickets
Uganda 204/9 (49.2 ov.) beat 
Papua New Guinea 203/6 (50 ov.) by 1 wicket
- Plate Semifinals
- Semifinals
- 2007 ICC World Cricket League Division Three
