McGrady told the paper he was "without a doubt" ready for Wednesday's opener against the Sacramento Kings, just days after coach Jeff Van Gundy expressed hesitation that the All-Star forward would be able to practice, let alone play.
But McGrady appears ready after undergoing two therapy sessions Friday and another Saturday and practicing with the team on Sunday.
"He came in and is doing well," Rockets trainer Keith Jones told the Chronicle after Saturday's session. "He had therapy every day. ... He is doing real well."
McGrady played in five preseason games, averaging 15 points in 23.2 minutes per game. In his last game, last Sunday against the Wizards, he took three shots before leaving the game.
"Hopefully, I'll be 100 percent. It's pretty much nothing I can control. It comes and goes. That's just how it is," McGrady told the paper of the pain the tendinitis brings. "I've dealt with it my whole career, but I've never dealt with it to the point that it kept me out as long as it has this season. I'm glad that it happened in the beginning, where I can deal with it now [rather] than later."