On Tuesday, we discovered that the Rockets organization was getting tired of T-Mac’s act, and now there’s a rumor that Yao Ming is growing weary of it as well.

According to a source close to the situation, Yao Ming and Tracy McGrady are no longer speaking with each other off the court. Ming is apparently so fed up with McGrady’s chronic injuries that he told the officials in Houston to get him out of the organization.

Another source also revealed that Yao’s frustration is real. And Yao is not the only person that is grown tired of McGrady’s self-diagnosis, his up-to-the-last-minute decisions on whether he will play or not.

If true, this could deal a serious blow to the Rockets’ 2009 title hopes. If a team doesn’t have chemistry between its stars, it’s unlikely that it will survive the gauntlet that is the NBA postseason. It’s a little funny that Yao is frustrated with T-Mac’s injuries when the big man has been injured several times himself. However, Yao’s injuries have typically been fractures and of the season-ending variety, not this nebulous, self-diagnosis stuff that McGrady has been experiencing with his knee.

Unless they have some serious success in the playoffs, the Rocket will face a crossroads this offseason. They’re currently building around two injury-prone players. T-Mac has another year left on his contract, so he may be tradeable as his deal expires before the now-infamous summer of 2010. Still, his giant salary ($23.2 million) is a doozy, and it’s possible that the Rockets would rather let his deal expire than to take on all that salary in return. Yao is 28 (assuming his Chinese birth certificate is legit) and he has two more years left on his deal. The team’s third best player — Ron Artest — will be a free agent after the season.

If the Rockets don’t make a run, we could see a very different lineup at the start of the 2009-10 season.