Since making his major league debut with Detroit in 2010, Jackson has batted .273 (908-for-3,320) with 163 doubles, 47 triples, 54 home runs and 286 RBI in 831 career games, all of which have come in center field. Among American League outfielders since 2010, Jackson ranks first in triples (47), second in runs scored (512), third in hits (908), seventh in doubles (163) and ninth in walks (293). He has appeared in at least 120 games in his first five seasons in the majors and is on pace to reach that mark again in 2015.
The 6-foot, 1-inch, 203-pound Jackson was acquired by the Mariners from Detroit at the trade deadline last season, and appeared in a career-high 154 games between the two clubs. He batted .256 (153-for-597) with 30 doubles and 20 steals, marking his third career season with 30 or more doubles and third campaign with at least 20 steals.
Jackson made his debut in 2010 with Detroit and led all American League rookies with 103 runs scored, 181 hits, 48 extra-base hits and 27 stolen bases. In 2012, he batted .300 (163-for-543) in 137 games, setting career marks in RBI (66) and walks (67). Jackson appeared in 35 career postseason games with the Tigers, batting .233 (31-for-133) with 10 extra-base hits across three playoff appearances from 2011-13.
A native of Denton, Texas, Jackson was originally selected by the Yankees in the eighth round of the 2005 June Draft. He spent his first five seasons in the Yankees organization, appearing in all three outfield positions, before being traded to the Tigers, December 9, 2009, along with Phil Coke and Ian Kennedy for Curtis Granderson.
Olt, 27, appeared in six games with Chicago before he landed on the disabled list with a hairline fracture of his right wrist, suffered April 11 in Colorado. Olt was acquired from Texas, July 22, 2013, in the five-player deal that sent pitcher Matt Garza to the Rangers, and last season hit .160 (36-for-225) with 12 home runs in 89 games for the Cubs.