KANSAS CITY -- The Indians are bringing Greg Allen back up to the Major Leagues as Lonnie Chisenhall hits the disabled list.
Chisenhall was placed on the 10-day DL on Tuesday after sustaining a left calf strain before Monday's game against the Royals in Kansas City. He had just returned to the club a few weeks prior after missing nearly two months with the same injury in his opposite calf.
While the MRI during Monday's game showed enough to warrant a trip to the disabled list, the full extent of Chisenhall's injury is still unknown.
"We don't know," manager Terry Francona said. "I don't think Lonnie knows, I don't think the trainers know. Did he hurt some scar tissue, did it bleed? That's what shows up on the MRI. That's just as honest as I can be about it."
The Tribe lineup will miss Chisenhall, as he was batting .343 since returning at the beginning of June. Michael Brantley is now the lone active Indian hitting above .300 entering play on Tuesday.
Allen joins the big league roster after being sent down to Triple-A Columbus on June 18. In his 14 games since being sent down, he batted .411.
"He's swinging the bat pretty good," Francona said. "That gives us coverage at all three outfield spots, and a switch hitter. So it kind of made common sense to get him here."

Allen has struggled to find much of the same success when with Cleveland, as he has hit just .204 in his time in the Majors. He had a solid May, hitting .273, but that progress took a step backwards in June with a .083 clip at the plate.
The trip back down to Columbus allowed Allen the opportunity to fix that. But even as his game may change as he bounces back and forth down I-71, his approach and mentality stays the same.
"For me, just being able to make a few adjustments at the plate, mentally and physically, and just go out there and play," Allen said. "Be free and easy, be loose. Again, just find ways to try to factor in and influence and help the team, whether it's here or with the Columbus team."