Kyrie Irving has been ruled out for Sunday's game against the Miami Heat due to a right shoulder impingement. 

Irving has missed 9 straight games with the injury.

Kenny Atkinson added that Irving has returned to the court. 

"First thing about Kyrie, he started on-court work, which is a real positive sign for us. He will be out for Miami. And then we'll see how it progresses. The fact that he started the on-court work is good news for us," said Atkinson.