Detroit Pistons star point guard Derrick Rose injured his right ankle on Sunday against the Sacramento Kings.

Rose left the game and did not return. However, head coach Dwane Casey said that the former MVP wasn’t in a walking boot and was moving around the locker room on Sunday, via Rod Beard of The Detroit News:

There was no update Monday on the severity of Derrick Rose’s ankle injury, but coach Dwane Casey said after Sunday’s loss that he wasn’t in a walking boot and that he was moving around the locker room, which was encouraging news. It's another blow to a season that had promise during training camp, but has spiraled into the abyss.

Rose has been the best player on the Pistons this season. The Chicago native is averaging 18.1 points, 2.4 rebounds and 5.6 assists in 50 games while shooting 49.0 percent from the field, 30.6 percent from beyond the arc and 87.1 percent from the free-throw line.

The Pistons and Rose can be cautious with the ankle sprain since Detroit is going to miss the playoffs this season. The Pistons are only 20-42 on the campaign, 11th in the Eastern Conference standings.

Rose signed a two-year deal with Detroit this past summer in free agency. The Pistons didn't trade Rose at the trade deadline in February despite multiple interests, which shows the team's belief that his presence is beneficial as the team enters a rebuild.