The Blue Jays designated right-hander Robert Ray for assignment to create 40-man roster space for Eric Thames, according to MLB.com's Gregor Chisholm (on Twitter). The Blue Jays placed Adam Lind on the 15-day disabled list and called on Thames to take Lind's 25-man roster spot.
Ray, 27, appeared in a handful of games for the Blue Jays in 2009 and 2010. He is currently on the 7-day DL in Triple-A and has not yet appeared in a game this year. In parts of six minor league seasons, he has a 4.19 ERA with 7.3 K/9 and 3.0 BB/9.
Thames, 24, has a .342/.419/.610 line in 167 plate appearances at Triple-A with 17 doubles and six homers as an outfielder. He hit 27 homers at Double-A last year and has a .303/.381/.529 line over the course of three minor league seasons.
According to Richard Griffin of the Toronto Star, the Blue Jays called on Thames rather than Brett Lawrie, since they wanted a left-handed bench bat in Lind's absence (Twitter link). When Lawrie gets the call, he'll join the team as an everyday player.