Aardsma started last season with Chicago and went 2-1 with a 6.40 ERA with 36 strikeouts in 32 1/3 innings over 25 relief outings. In the second half of the season at Triple-A Charlotte, Aardsma, 26, was 3-2 with a 4.33 ERA with 15 saves in 18 appearances.

He’s made 81 relief appearances with the White Sox, Chicago Cubs and San Francisco Giants, compiling a record of 6-1 with a 5.16 ERA.

Mota had 17 relief outings last year at Class-A Lowell, going 5-3 with a 2.60 ERA and one save. Socolovich pitched last year for two Class-A teams, Greenville and Lowell. He was 2-2 with a 6.65 ERA in 11 games with Greenville and 5-4 with a 3.56 ERA in 14 games with Lowell.