Golden State Warriors' star guard Klay Thompson has a torn right Achilles and will miss the 2020-21 season.
This will be the second consecutive lost season for Thompson, who tore his left anterior cruciate ligament in the NBA Finals against the Toronto Raptors in June 2019 and has not played since.
The Warriors confirmed reports on Wednesday night that Thompson suffered a leg injury in a workout in Southern California but have not provided any details since.
Tests were scheduled for Thursday morning to determine the extent of the injury.
The initial injury news broke via social media about 90 minutes before the Warriors were scheduled to be on the clock with the No. 2 pick in the NBA Draft.
With Thompson out and Stephen Curry down with a broken hand for most of the season, Golden State went from Western Conference champions to a league-worst 15 victories last season.
Thompson was drafted by Golden State with the 11th overall pick in the 2011 NBA Draft out of Washington State.
A five-time All-Star and three-time NBA champion, he signed a five-year, $189.9mi deal before last season when Kevin Durant opted to leave for the Brooklyn Nets in free agency.
Thompson, 30, owns a career average of 19.5 points in 615 games over his eight NBA seasons. A formidable shooter, he has a career shooting percentage of 41.9 percent from three-point range.