TAMPA, Fla. - Didi Gregorius was resolute.

Did he have any doubt whatsoever he'll be ready for Monday's season-opener? "No, not really," he said Tuesday. "No."

The 25-year-old shortstop, who left Saturday's game against the Orioles with a left wrist sprain, has not gotten back on the field yet to resume baseball activities. He ran sprints Tuesday and did "one-handed" hitting drills in the cage, he said. Otherwise, Gregorius has been coming in for treatment on the wrist, which includes ice and, on Monday, acupuncture.

But he described the wrist as "way better" than it felt Saturday and though Joe Girardi said Gregorius had "a little bit of swelling," the infielder said that was no longer the case.

"No," he said. "Everything's fine now."

Still, it seems unlikely Gregorius will play in Wednesday's game against the Rays but one of Thursday's split-squad games is a possibility.

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"Whenever they tell me I'm allowed to get on the field, I'll get on the field," he said. "No hurry, no rush. Just trying to be safe."

Warren gets work in

RHP Adam Warren, the presumed fifth starter, allowed five runs -- four earned -- and nine hits in four innings in a minor-league game Tuesday.

"Wasn't great out there but came out healthy and got my pitch count up," said Warren, who threw 82 pitches. "Just keep working and getting ready for the season."

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Extra bases

First baseman Mark Teixeira, hit by a pitch on his right knee Sunday in a minor-league game, reported to Girardi that he felt "decent." Wednesday is a possibility for his return . . . RHP Jared Burton, who had a good shot at a bullpen spot before an oblique injury March 17, has been playing catch and said Tuesday he hopes to throw a side session "Sunday or Monday."

INF Jose Pirela, out with a concussion since running into the outfield wall in Port St. Lucie, March 22, said he's doing "much better," but his activities as of now haven't progressed beyond riding an exercise bike.

With David Lennon

in Fort Myers