Sources -- New York Yankees acquire starter Frankie Montas, closer Lou Trivino from Oakland Athletics

The New York Yankees are finalizing a deal to acquire right-handed starter Frankie Montas and closer Lou Trivino from the Oakland Athletics, sources confirmed to ESPN.

The A's are receiving left-handers Ken Waldichuk and J.P. Sears, right-hander Luis Medina and second baseman Cooper Bowman from the Yankees, sources said.

The trade for Montas is the second involving a highly sought-after starting pitcher this week, following Seattle's acquisition of right-hander Luis Castillo from the Cincinnati Reds for a four-prospect package.

The AL-best Yankees have had a busy deadline, acquiring outfielder Andrew Benintendi and rookie reliever Scott Effross.

Montas, a 29-year-old who is not eligible for free agency until after the 2023 season, has shown flashes of excellence since signing with Boston in 2009. He was traded to the Chicago White Sox and Los Angeles Dodgers before moving to the A's, where he blossomed over the last six seasons into the pitcher who this season has 104.2 innings of 3.18 ERA ball with 109 strikeouts, 28 walks and a dozen home runs allowed.

A shoulder injury sidelined Montas for a mid-July start, but he returned with three shutout innings followed by a five-inning, two-earned run start against Houston. That was enough of a sample to draw a broad market of teams — large market and small.

The Yankees won the Montas sweepstakes and add to their rotation a starter who will slot into a playoff rotation with a fastball-slider-splitter pitch mix that has proven effective all season. Montas went at least five innings in 15 of his first 16 starts, with the only exception a game in which he got hit in the hand on a comebacker and left the game after 1.2 innings.

YES Network first reported the trade.