Events in Sport
- Sep 4 Argentina pulls off one of the biggest upsets in basketball history, beating the US, 87-80 in 2nd round of the World Championships; 1st US loss in 59 games since sending NBA players to international competition in 1992
- Sep 4 After blowing an 11-run lead to Kansas City, Scott Hatteberg's bottom of the 9th walk off HR gives Oakland a historic MLB victory, 12-11; A's set AL record 20 game winning streak
US Open Women's Tennis
Sep 7 US Open Women's Tennis: Serena Williams wins second US title; beats older sister Venus Williams 6-4, 6-3

Serena Williams

Venus Williams
- Sep 8 Rookie quarterback David Carr throws for 2 TDs as the Houston Texans beat Dallas Cowboys 19-10 to become only the 2nd expansion team (1961 Minnesota Vikings) to win their inaugural game
- Sep 8 Texas Rangers set a major league record by homering in their 26th consecutive game as Texas falls to the Tampa Bay
US Men's Tennis Open
Sep 8 US Open Men's Tennis: Pete Sampras wins 14th and final Grand Slam title; beats fellow American Andre Agassi 6-3, 6-4, 5-7, 6-4

Pete Sampras

Andre Agassi
- Sep 9 Pitcher Randy Johnson reaches 300 strikeouts for the fifth consecutive season, extending his major league record
- Sep 15 Oakland quarterback Rich Gannon begins NFL record-tying (Kurt Warner, Steve Young) streak of 6 consecutive 300-yard passing games, throwing for 403 yards in Raiders' 30-17 victory at Pittsburgh
- Sep 22 Solheim Cup Women's Golf, Interlachen CC: US regains Cup 15½-12½; Rosie Jones gains winning point in her 3 & 2 victory over Karine Icher
- Sep 29 Ryder Cup Golf, The Belfry: Europe wins 15½-12½ after teams tied at 8 points going into Sunday singles matches
- Sep 29 Seattle running back Shaun Alexander sets NFL record for most touchdowns in a half with 5 in 1st half of 48-23 win v Minnesota Vikings at Seahawks Stadium; runs for 4 plus 80-yard reception
Deaths in Sport
Johnny Unitas
Sep 11 Johnny Unitas, American football player, dies of a heart attack at 69

Johnny Unitas
- Sep 14 Jim Barnes, American basketball player (Olympic gold 1964), dies of a stroke at 61
- Sep 18 Bob Hayes, American athlete (2 x Olympic gold 100m, 4x100m relay 1964) and Pro Football Hall of Fame receiver (3-time Pro Bowl; Dallas Cowboys), dies of kidney failure at 59
- Sep 18 Mauro Ramos, Brazilian football player (b. 1930)
- Sep 24 Leon Hart, American College Football Hall of Fame end and fullback (Heisman Trophy 1949, Notre Dame), dies at 73
- Sep 28 Hartland Molson, Canadian businessman (Molson family), senator and sports executive (Montreal Canadiens), dies at 95
- Sep 30 Arthur Hazlerigg, British peer and cricketer, dies at 92