Ruggiano, 32, went on the DL on April 24 with a right hamstring strain while chasing a fly ball in right field during Wrigley Field’s 100th anniversary game the day before. He homered earlier in that game, his first of the year, and was a mere 3-for-21 in six rehab games at Iowa.
Ruggiano was hitting .229/.308/.343 with six RBIs in 14 games prior to his injury.
Kalish, 26, emerged as a good story in spring training, making the Opening Day roster after spending several seasons rehabbing neck and shoulder injuries.
Kalish was hitting .242/.303/.330 in 39 games, including three doubles and four triples. He had cervical fusion surgery performed by the same doctor who performed Peyton Manning’s neck procedure.
“Totally impressed,” Cubs manager Rick Renteria said. “He came every day prepared. High energy. Defends well. Runs hard. I think just getting back in there on a daily basis to get his whole game going again (will) help him move forward. We’ll see him again.”