Rajon Rondo's agent is upset over comments made by Celtics president Danny Ainge on WEEI Thursday morning.

Ainge said that Rondo has "got to grow up," and added, "his presence hurt us" against the Magic in the Eastern Conference semifinals. He also said that Rondo wasn't a "max contract player," and admitted that Rondo was fined for being tardy to postseason games.

Agent Bill Duffy was taken back by the comments.

"I am just surprised that Danny is speaking, even if he considers it constructively, in a public setting [about Rondo]," Duffy told the Boston Globe. "I don't think that it's appropriate to say that about one of your top players. Even if it's spoken constructively, I don't think it should be done in public. I don't think [Ainge] would like it if [Celtics managing partner] Wyc [Grousbeck] was talking about him in public.

"What they're saying about him critically is actually an asset to him. He is feisty. He is competitive, yes. Last time I checked they won a world championship with him at point guard. If the team wasn't hurting they might have done it again this year. Rondo's tough love from Danny isn't necessary. He's self-motivated and a self-starter."

Rondo wouldn't comment on what Ainge said, but Duffy said that his client "knows" and that "he's all right."