Torres, a 19-year-old shortstop, is currently ranked as the Cubs’ top-prospect and No. 15 in baseball, according to ESPN’s Keith Law. In 94 games with High-A Myrtle Beach, Torres hit .275 with 26 extra-base hits and 47 runs batted in, and is projected to make his major league debut in 2018.
McKinney, a first-round draft pick from 2013, is ranked the fifth-best Cubs prospect and No. 75 in baseball, according to MLB.com. The 21-year-old outfielder hit .252 in 88 games with Double-A Tennessee.
Warren, 28, who was traded by the Yankees last November in a package deal for second baseman Starlin Castro, has posted a 5.31 ERA in 35 innings of relief this season, and was optioned to Chicago’s Triple-A affiliate on Sunday. Warren remains arbitration eligible for 2017, and becomes a free agent in 2019.
In 31.1 innings this season, Chapman has earned 20 saves, including 44 strikeouts and a 2.01 ERA.