Joe Johnson underwent an MRI in Atlanta on Tuesday, and he was diagnosed with left knee tendinitis. As previously announced, he’ll miss the Hawks’ next two games.

In addition, Johnson won’t participate in this weekend’s All-Star game and activities in Orlando. He will be re-evaluated prior to Atlanta’s first game after the All-Star break

Gary Washburn of the Boston Globe is reporting that Rajon Rondo will replace Johnson on the Eastern Conference All-Star team.