Isaiah Thomas is returning to action for the Cavaliers. But he will not play tomorrow against the Celtics at the Garden.

Thomas, sidelined with a hip injury since he played for the Celtics in last year’s playoffs, will make his debut for Cavs tonight at home against Portland. He will skip the second half of the back-to-back set against the C’s tomorrow.

Still, Thomas knows there’s extra attention regarding his return to Boston for the first time since the Celtics dealt him to Cleveland as part of a package that netted Kyrie Irving.

But Thomas expects only good things.

“There’s no hard feelings,” he said yesterday in Cleveland. “This ain’t no revenge game. They know what they gave up. It’s all good. I’m focusing on the Cleveland Cavaliers and trying to win a championship.”

The breakup between the Celtics and Thomas has had combative moments, such as when Thomas said last week he felt he was misled about his hip injury and would have sat out if he knew more — a point rebutted by Celtics coach Brad Stevens.

Thomas, who became an All-Star in Boston and helped prop up the team as it began its rebuilding process, said he expects a positive reaction from Celtics fans.

“I keep saying I gave that city everything I have and they showed me genuine love back,” he said, “and that love is going to last forever.”

Thomas said it won’t be hard to sit out this time, but he’s circled the Feb. 11 return visit by the Cavs to Boston.