The Rays have a day off Monday, so the hope is Molina will be back in the lineup Tuesday night in Kansas City.
In other injury news, shortstop Yunel Escobar continues to progress from tightness in his right hamstring and remains day to day. His return to the lineup is unknown.
"Escobar took some ground balls earlier," Maddon said. "I don't know. He's doing well. Hopefully, he'll be able to play Tuesday night in Kansas City."
John Jackson is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.