The New York Yankees are finalizing a deal to acquire outfielder Joey Gallo from the Texas Rangers, sources told ESPN's Jeff Passan on Wednesday night.

The deal is pending a medical review.

The Rangers will receive right-hander Glenn Otto, second baseman Ezequiel Duran, shortstop Josh Smith and second baseman/outfielder Trevor Hauver as part of the package from New York, with sources telling Passan that others are involved too.

Gallo was a late scratch from the Rangers' lineup ahead of Wednesday night's game against the visiting Arizona Diamondbacks, with speculation that a trade was in the works.

That proved to be the case, with the Yankees swooping in and acquiring arguably the fiercest left-handed bat on the trade market to go with fellow New York sluggers Giancarlo Stanton and Aaron Judge.

New York's left-handed hitters have struggled this season, ranking last in the majors in average (.197), 28th in home runs (22) and OPS (.633), and 29th in hard-hit rate (33%).

Gallo should help.

He has spent all seven of his major league seasons with Texas, but the Rangers -- an American League West-worst 36-65 entering Wednesday -- have been in unloading mode, with Gallo their prized player.

A two-time All-Star, the 27-year-old slugger ranks sixth in the AL this season with 25 home runs, to go with 55 RBIs and a .223 average. He had struggled mightily at the plate since the All-Star break, with zero home runs and a .067 average in the 10 games following, before breaking out Tuesday with a three-run shot against the Diamondbacks.

Gallo is among just eight rostered major leaguers with multiple career 40-homer seasons (2017, 2018).

But he also has excelled in the outfield, winning a Gold Glove in 2020. He leads the majors with 14 defensive runs saved this season and joins the Toronto Blue Jays' Marcus Semien as the only players with 20 home runs and 10 defensive runs saved.

Gallo also is under team control through 2022.

The Rangers got a strong package in return for Gallo.

Otto, a fifth-round pick of the Yanks in 2017, has split time between Double-A and Triple-A this season, going 7-3 with a 3.33 ERA in 12 starts. He has posted sub-4.00 ERA in all four of his minor league seasons.

Duran, a 22-year-old from the Dominican Republic, had been off to a hot start in Class A this season, with 12 home runs, 48 RBIs and a .290 average in 67 games for Hudson Valley.

Smith, also on Hudson Valley, was the Yankees' second-round pick in 2019. He has 17 steals and 44 runs scored in 39 games this season, while hitting .324.

And Hauver, a third-round pick last year, was hitting .288 with nine home runs and 49 RBIs this season, his first in the minors.

The Yankees began Wednesday nine games behind the Boston Red Sox in the AL East and trailing the Tampa Bay Rays, Oakland Athletics and Seattle Mariners in the wild-card race for two spots.