The move is retroactive to May 17.
In a corresponding roster move, the team selected the contract of infielder Munenori Kawasaki from Triple A Buffalo.
Kawasaki’s promotion gives the team an extra infielder as it waits for shortstop Jose Reyes to return. Reyes has missed the last three weeks recovering from a cracked left rib.
Travis was injured in a game on April 30 against the Cleveland Indians when he was hit in the left collarbone by a ground ball that took a bad hop.
"It's frustrating," Thomas said, according to MLB.com. "I'm hoping it's getter better day by day."
Thomas is batting .271 with seven home runs and 26 RBIs this season for the Blue Jays (19-24), who are in last place in the American League East.
- Scooby Axson