Blake Rutherford, the Yankees' top outfield prospect, is heading to Chicago along with two more minor-leaguers -- left-hander Ian Clarkin and outfielder Tito Polo -- and veteran right-hander Tyler Clippard.
Rutherford, 20, was a first-round draft pick last year and is baseball's No. 30 prospect, according to MLB.com. He is batting .282 with a .342 on-base percentage, a .391 slugging percentage, two home runs and 30 RBIs in 71 games for low Class A Charleston.
"We made the determination that bundling these three players together was the best way to maximize our return on any transaction," White Sox senior vice president/general manager Rick Hahn said. "We felt this trade with the Yankees brought back the most quality as opposed to spreading our assets across multiple deals.
"Blake Rutherford is a player who has been high on our evaluation list since he was taken as a first-round choice by the Yankees as an amateur. Clarkin gives us another highly-rated first-round selection (33rd overall) from the draft, Polo is a Class AA outfielder who has shown he can get on base, and Clippard provides us with a veteran bullpen option for the remainder of this season."
Frazier, a former Little League World Series standout from Toms River, N.J., is hitting only .206 this season but has 16 home runs and 44 RBIs. The 31-year-old veteran belted a career-high 40 homers last season and has 164 in his seven-year career. He is eligible to become a free agent after the season.
Robertson, 32, pitched for the Yankees in his first seven seasons, specializing in the eighth inning. After Mariano Rivera retired in 2013, Robertson saved 39 games in 2014 before signing a four-year, $46 million contract with the White Sox.
Kahnle, 27, is 1-3 with seven holds and a 2.50 ERA in 37 relief appearances for Chicago this year. Kahnle, like Robertson, began his career in the Yankees organization.
Chicago now possesses 10 of the top 68 prospects, according to MLB.com. Infielder Yoan Moncada (1); outfielder Eloy Jimenez (8); right-hander Michael Kopech (11); outfielder Luis Robert (23); right-handers Lucas Giolito (28), Reynaldo Lopez (36), Carson Fulmer (59) and Dylan Cease (63); and catcher Zack Collins (68) are the others.
Moncada, 22, will be recalled Wednesday from Triple-A Charlotte prior to Chicago's game against the Los Angeles Dodgers.
He was batting .282 with 12 home runs, 36 RBIs, 57 runs scored, 49 walks, 17 stolen bases and a .377 on-base percentage in 80 games with Charlotte this season -- his first in the White Sox organization.
Moncada was acquired from Boston in the December 6, 2016, trade that sent Chris Sale to the Red Sox.
The White Sox also will call up right-hander Brad Goldberg on Wednesday.