Police are investigating a claim made against Tigers relief pitcher Evan Reed he sexually assaulted a woman in a Motor City Casino hotel room the night before Opening Day, two Detroit Police Department sources told The News.

Reed, in his second year with Detroit, has not been charged with any crime and is with the team on a five-game West Coast trip that begins Tuesday in Los Angeles.

“The organization is aware of the very serious allegation that has been made against pitcher Evan Reed,” Tigers officials said in a statement released Monday night. “This allegation is concerning and we are aware of an ongoing investigation.

“It would be inappropriate for the ballclub to comment further at this time.”

The woman told police she met Reed in a Royal Oak bar earlier March 30, and then didn’t remember anything until she woke up later in the Motor City Casino hotel room.

The woman went to police two days after the alleged incident took place.

Reed pitched Opening Day (March 31) against the Royals, and last Saturday against the Orioles.