Greg Bird hit off a tee Tuesday for the first time since undergoing ankle surgery three weeks ago and believes he can return to baseball activities by the end of this week. And if all goes according to plan — a big “if” in Bird’s case — he expects to head to Tampa to rehab when the Yankees go on the road on April 27.

The first baseman said there is still soreness in the area where he went under the knife and is confident it’s due to the surgery and not the bone spur that was removed. The next hurdle will be running without support.

By the Yankees’ schedule, he’s halfway to the shorter side of the rehab process that could get him back on the field in another three weeks.

“I think I’m right on track,” Bird said.

Gleyber Torres was held out of Tuesday’s lineup for Triple-A Scranton/Wilkes-Barre after being pulled from Monday’s game with back stiffness, but Boone doesn’t believe the injury is serious.

“I don’t think it’s a big deal,” Boone said. “They’re just being cautious with it. … It’s day-to-day. Hopefully he’ll be in there [Wednesday].”

Neil Walker went 0-for-4 in the Yankees’ 9-1 loss to the Marlins and is now hitless in his last 16 at-bats.

“He’s struggling to get that timing going,’’ Boone said. “He’s swinging through some balls he normally doesn’t swing through. [Walker] is a guy that’s always hit.”

Brandon Drury, a day after taking batting practice for the first time since going on the DL with migraines and blurred vision, said he felt about the same and hopes to be able to see results from the medication within a week: “I know the feeling I have and I’ll know when I’m better.”