TAMPA, Florida — Adam Ottavino came out firing on Thursday morning.

On a back field at Yankees camp, the right-handed reliever struck out all four batters he faced in a simulated setting — getting Gleyber Torres, Luke Voit and lefty hitter Tyler Wade (twice), all swinging.

“Seeing that live and in-person and being in the box…that was pretty impressive,’’ Wade said. “I’m glad we have him.

“I probably saw four or five sliders and all of them were different. (And) “if it looks different, you don’t know what’s coming,’’ Wade said. “I couldn’t imagine being a right-handed hitter.’’

Ottavino signed a three-year, $27 million free agent contract, coming off a terrific season with the Colorado Rockies (2.43 ERA, 112 Ks, 36 walks, 77.2 IP).

Watching from behind the mound, protected by a screen, manager Aaron Boone was suitably impressed by Ottavino's work.

"That’s one of the ones where you’re watching from behind and knowing as a right-handed hitter, it’s like, ‘That’s not a fun at-bat right there,' '' Boone said. "When he executes, you’re kind of like not even upset when you’re out.

"You’re just glad it’s over with.''

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Greg Bird homers vs. Masahiro Tanaka

Greg Bird also had a good morning, belting a leadoff home run to right off Masahiro Tanaka and lining a sharp, opposite-field single off James Paxton.

The lefty hitting Bird is battling Voit for the first base job in camp; the Yanks' exhibition schedule begins on Saturday against the Red Sox at Fort Myers; both players are slated to make the trip.

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"One step closer to game speed,'' said Bird, eager to test himself in exhibition play. "Today was a little bit slower, which was nice. It's harder to see back there, especially that time of day.''

And after an impressive batting practice showing a day earlier on the main field, Troy Tulowitzki crashed a long "extra-base'' hit against Paxton.

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The right-handed Tanaka faced six batters in two simulated innings (technically 1.2 innings). He threw 21 strikes in 32 pitches and struck three batters — Miguel Andujar, Wade (both looking) and Torres.

Tanaka also faced Gary Sanchez (groundout) and Tulowitzki (fly out).

The left-handed Paxton pitched one simulated inning, with 19 strikeouts in 27 pitches, and also faced Voit and DJ LeMahieu.

Domingo German and Chad Green each worked a simulated inning as well.