Cardenas, 24, joins the Cubs for his second stint in the big leagues this season. He made his major league debut earlier this year and batted .189 (7-for-37) with five doubles, four runs scored and one RBI in 25 games from May 7-June 25. Cardenas saw major league action at second base (six games, four starts), third base (one start) and left field (two games, one start).
The left-handed batter and right-handed thrower is batting .322 (68-for-211) with 20 doubles, four triples, two home runs and 28 RBI in 56 games with Iowa this season. Cardenas has a .407 on-base percentage and a .483 slugging percentage, good for an .890 OPS. Cardenas was claimed off waivers from Oakland in February.
Castillo, 25, also joins the Cubs for his second stint in the majors this year. He batted .206 (7-for-34) with two doubles, one home run and four RBI during his first stop in the big leagues this season, a stint that was interrupted by a sprained right knee that landed him on the disabled list from May 22-June 14. Castillo has spent part of the last three seasons in the majors and is a career .224 hitter (15-for-67) with six doubles, two home runs and nine RBI in 20 big league contests.
The right-handed hitting Castillo is batting .260 (38-for-146) with six doubles, six home runs and 22 RBI in 44 games with Iowa this season. He has a .375 on-base percentage and a .425 slugging percentage to post an .800 OPS.
Coleman, 25, went 0-1 with a 7.32 ERA (16 ER/19.2 IP) in 16 relief appearances for the Cubs during his first big league stint this season from May 12-July 2. Prior to allowing seven runs in 1.2 innings in his final big league outing June 27, Coleman had pitched to a 4.50 ERA (9 ER/18.0 IP) in his first 15 appearances, including 13 of 15 games during which he allowed one run or less. He had a seven-outing scoreless streak from May 19-June 4 covering 7.0 innings. Coleman has pitched part of the last three seasons in the majors with the Cubs (47 appearances, 25 starts).
In Triple-A this year, Coleman has pitched primarily as a starter and is 2-4 with a 5.01 ERA (28 ER/50.1 IP) in 11 appearances (nine starts). He allowed nine earned runs in 2.2 innings pitched in his July 21 start at Albuquerque; remove that outing and Coleman has posted a 3.79 ERA (17 ER/40.1 IP) in his remaining eight Triple-A starts.