Ben Simmons attended the Philadelphia 76ers' shootaround on Thursday.

“He’s been working out,” Doc Rivers said before Thursday’s home game against the Detroit Pistons. “Today he was at shootaround, did a lot of shooting and a lot of stuff with Spencer [Rivers].”

Simmons has been working out at the practice facility for at least the past three days.

Rivers also said Simmons has been in good spirits since a meeting last Friday in which he revealed he wasn't mentally ready to play. Rivers admitted he doesn't know when Simmons will return to play.

“I don’t think about it a lot,” he said. “I’ve always thought that. I’m assuming yes. But I don’t give that a lot of thought right now.”