On this day in:

• 1857Baseball decides 9 innings constitutes an official game, not 9 runs

• 1951 Ezzard Charles beats Jersey Joe Walcott in 15 for 2nd time to win National Boxing Association world heavyweight title

• 1986 Wayne Gretzky breaks own NHL season record with 136th assist

• 1987Gavaskar becomes 1st cricket batsman to score 10,000 Test runs

• 1987 Mike Tyson beats James 'Bonecrusher' Smith in 12 for WBA heavyweight boxing title

• 1992Nicole Stevenson swims world record 200m backstroke (2:06.78)

• 1996 Magic Johnson is 2nd NBA player to reach 10,000 career assists

• 2009 Despite only being 17 years old, Brazilian soccer star Neymar makes his professional debut for Santos

• 2016 Peyton Manning announces his retirement from the Denver Broncos and the NFL

• 2016 Russian tennis star Maria Sharapova reveals failed drug test for meldonium at Australian Open in January, subsequently suspended for 15 months