Blue Jays outfielder Kevin Pillar is headed to the disabled list with a Sternoclavicular joint sprain, the team announced Sunday. Per MLB.com’s Gregor Chisholm, Pillar’s arm has been set in a sling and will be kept that way for the next week, though he’s expected to miss anywhere from 4-6 weeks in recovery.

Pillar sustained the injury after sprinting to make a diving catch during Saturday’s 6-2 loss to the Red Sox. He flipped the ball to Lourdes Gurriel Jr. for an inning-ending double play in the third and was able to walk off the field without trouble, but was wincing when he returned to the dugout and didn’t come out for the fourth inning.

Prior to the incident, Pillar went 0-for-1 with a groundout. He’s batting .247/.279/.407 with eight home runs and 11 stolen bases in 366 plate appearances this season. He’ll likely be replaced by some combination of Curtis Granderson, Dwight Smith Jr. and Kendrys Morales until he makes a full recovery.

In corresponding moves, Gurriel was also placed on the seven-day concussion disabled list after colliding with Eduardo Rodriguez on Saturday, while left-hander Jaime Garcia and right-hander Ryan Tepera have been activated from the 10-day DL to fill the two empty roster spots.