INDEPENDENCE, Ohio -- Cavaliers guard Iman Shumpert suffered a sprained left foot in the first quarter Wednesday and is expected to miss the rest of the preseason.

In a news release announcing Shumpert's diagnosis, which was confirmed by medical imaging Thursday morning, the Cavs said Shumpert would be out seven-to-10 days. Cleveland's last preseason game is Oct. 13 in Orlando -- eight days from now.

"We'll see how he feels," Cavs coach Tyronn Lue said. "He always heals pretty good. He heals faster than anyone I've ever seen. We'll just see how he feels."

Shumpert suffered the injury late in the first quarter of Wednesday's 109-93 loss in the preseason opener to Atlanta.

LeBron James (sprained left ankle) didn't play against the Hawks, but participated fully in practice Thursday and could play Friday against the Indiana Pacers if his body responds to Thursday's workout, Lue said.

Lue also said that rookie forward Cedi Osman, who replaced Shumpert Wednesday, would likely rest against the Pacers. Osman has been dealing with back spasms.

Osman scored six points with two rebounds, two assists, and three turnovers in 16 minutes against the Hawks.

"He played a little bit more minutes than we expected," Lue said of Osman, the 22-year-old rookie who came over from Turkey. "I think tomorrow he'll probably be out and then be ready to go on Sunday."

Lue also said of Osman: "I liked him a lot (against the Hawks). We've been talking a lot about him throughout the course of this preseason. Just practices, knows how to play, can defend, can make the plays. He's a smart player. I really like him a lot."