Getz aggravated an injury in his left ribcage with a slide on Monday night and was placed on the 15-day disabled list before Tuesday's game against the Yankees. Getz was originally injured last Wednesday night during a collision with Orioles baserunner Chris Davis.
"I'm not great with the terms, but it's intercostal cartilage," Getz said. "The stuff in between ribs four and five is inflamed -- it's not torn -- along with bone contusions on both of those ribs. That's the part that's painful for the breathing."
Getz underwent an MRI exam on Tuesday after the pain increased. Fortunately, there was no rib fracture and no cartilage tear.
"I'd say, in terms of grades of pain, it's twice as bad as it was," Getz said. "If I did it again, it'd probably be worse again, so it's just a bad cycle of events."
Getz won't do anything for a few days before getting back into baseball activities, then he'll go to the Minor Leagues on an injury rehab assignment to get some at-bats. He was batting .277 in 30 games.
Falu, a switch-hitter, will play against right-handed pitchers and Giavotella, a right-handed hitter, will face lefties. Falu, batting .419 through eight games, started on Tuesday night.
"He's been fantastic," Yost said of Falu. "He makes all the plays, swings the bat well from both sides of the plate."