Gattis came out of the game Friday night with the injury. The Braves hoped to avoid a DL stint for Gattis, but the MRI showed the injury was more serious than originally thought.
In his 63 games this season, Gattis has hit .290 with 16 home runs and driven in 39. His on base percentage is .342. Gattis hit .353 in June with a .402 OBP, six home runs and 17 RBI.
The Braves will turn to veteran Gerald Laird and rookie Christian Bethancourt to split time behind the plate. Bethancourt started Monday's game against the Mets and was 1-for-3 with a run scored.
While the injury to Gattis will take a big bat out of the lineup, it will give the Braves a chance to see what Bethancourt can do in the major leagues. He's the second best prospect for the Braves, behind Mississippi second baseman Jose Peraza.
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