One of basketball’s biggest stars, Kobe Bryant, is playing his final game in a career that has spanned two decades.
He has played for just one team, the LA Lakers, winning five NBA titles and recording the third highest total number of points in the sport.
Tickets for his final match, against Utah Jazz in Los Angeles, were changing hands for up to $27,500 (£19,315).
Hollywood stars and sports legends are in the sell-out crowd at the Staples Center in Los Angeles.
Lakers spokesman John Black said Bryant, 37, would address the crowd at the end of the game.
The Los Angeles transport department has renamed a metro station near the Staples Center “Kobe Station” for the day.
Los Angeles City Hall was lit up in the Lakers’ colours of purple and gold at dusk.
However, correspondents say Bryant is not universally adored by fans.
His performances could be inconsistent and in 2003 he was accused of rape by a woman with whom he eventually reached an out-of-court settlement.
Growing up in Philadelphia, Kobe Bryant entered the NBA straight from high school at the age of 17.
He became the youngest-ever player to appear in an NBA game, coming on against Dallas aged 18 years, two months and 11 days.