The Seattle Mariners have placed pitcher Cliff Lee on the 15-day disabled list (DL), per Jim Street of MLB.com.
The move is retroactive to March 26th.
Lee said today of throwing on flat ground, "I feel good. I virtually threw as hard today as I can throw and didn't feel anything. It's good."
In addition to Lee, the Mariners begin the season with three players on the DL: Lee, pitcher Erik Bedard and third baseman Jack Hannahan.
Facing a five-game suspension, which he is appealing, Lee could miss almost all of April.