Yankees manager Aaron Boone explains what he liked from Edwin Encarnacion during his debut with the Yankees. (0:54)

NEW YORK -- Edwin Encarnacion went from last place in the American League West to first in the AL East.

Naturally, he was pretty excited about it.

The veteran slugger was hitless during his Yankees debut Monday night against Tampa Bay in the opener of a three-game series. But he received a warm ovation from the crowd of 39,042, and New York won 3-0 to move 1½ games ahead of the Rays.

"He could have picked somewhere else. I'd have been fine with it,'' Tampa Bay manager Kevin Cash joked before the game.

Batting fifth as the designated hitter, Encarnacion went 0-for-4 in pinstripes. He struck out swinging on the 10th pitch of his first at-bat in the second inning against Yonny Chirinos.

"I saw a lot of pitches. I feel good. I'm just missing a couple of pitches that I know I can hit,'' Encarnacion said. "It's part of the game. I'll get them tomorrow.''

Acquired from Seattle in a trade late Saturday night, Encarnacion joined the Yankees on Monday and began the day leading the American League with 21 home runs. He said he expected to be shipped off by the payroll-paring Mariners, but didn't think he'd wind up in New York.

When he got the news, he was surprised and happy to be sent to a first-place team.

"I play the game to win, and it's exciting to come to a team that's battling and doing so well right now,'' Encarnacion said through a translator.

Encarnacion, 36, batted behind catcher Gary Sanchez, who ranked second in the AL with 20 homers. And with fellow sluggers Giancarlo Stanton and Aaron Judge close to returning from the injured list, the Yankees are soon poised to field one of baseball's most powerful lineups.

"I can't wait to see that. It's going to be fun,'' Encarnacion said. "We're going to hit a lot of homers, and we're going to win a lot of games, too.''

General manager Brian Cashman acknowledged that some might have been surprised to see the Yankees add another big bat when it's clear they're looking to upgrade an injury-depleted pitching rotation before the July 31 trade deadline. But he said the Encarnacion move won't preclude that.

"I've got more work to do,'' Cashman said. "We'll be aggressive. We're always aggressive. We just want to be smartly aggressive.''

Stanton is due to come off the injured list Tuesday, with Judge potentially to follow in a few days. When they get back, and with Encarnacion now in the fold at designated hitter, Stanton is expected to play left field a lot, making veteran Brett Gardner primarily a fourth outfielder with a part-time role on the bench.

"We have a great lineup, and with those two animals coming back, it will be even more powerful. An even better lineup,'' Sanchez said through a translator. "We just have to stay healthy and keep on playing baseball.''

Cashman pointed out that the addition of Encarnacion will give manager Aaron Boone even more opportunities to rest top players and keep them fresh while mixing and matching, something the GM said Boone has done a "masterful job'' with despite all the injuries New York has endured this season.

"It gives us a lot of coverage in a lot of different ways,'' Cashman said.

Encarnacion switched from No. 10 with the Mariners to No. 30 with the Yankees, who retired No. 10 in honor of Hall of Fame shortstop Phil Rizzuto.

"It's very exciting to wear the uniform,'' Encarnacion said through a translator.

The three-time All-Star has 401 career home runs, making him the third player with at least 400 before joining the Bronx Bombers. Jose Canseco had 440 when he arrived in 2000, and Andruw Jones had 407 when he was obtained in 2011.

"We've seen what he's done to us over the course of time,'' Cashman said about Encarnacion. "He's a very patient, powerful, impact bat. His makeup is off the chart, and he's very well-liked by his teammates.''

As a visitor at the new Yankee Stadium, Encarnacion had 18 homers in 69 games.

"When you play here, every game is packed. So that's maybe why,'' he said.

Encarnacion began the night hitting .241 and was among the league leaders with 49 RBIs and 48 runs. He has averaged 37 homers and 109 RBIs in his past seven seasons and tops the majors with 322 long balls this decade.

He moved from Cleveland to Seattle last December in a three-team trade that included Tampa Bay. Cashman said the Yankees knew the Mariners would make Encarnacion available again, so they stayed in touch.

Seattle will send $8,397,849 to the Yankees as part of the trade, leaving them to pay $8 million of the remaining $16,397,849 guaranteed to Encarnacion at the time of the trade -- $11,397,849 of his $20 million salary this year plus a $5 million buyout of a $25 million club option for 2020.

New York sent 19-year-old minor league pitcher Juan Then to the Mariners.

The way the deal is structured, Encarnacion counts only $3 million toward the Yankees' luxury tax payroll this year and $5 million toward 2020.