Mariners' Tony Zych: Placed on 15-day DL with shoulder tendinitis

Zych was placed on the 15-day disabled list Tuesday retroactive to May 2 due to rotator cuff tendinitis.

It's unclear when the ailment arose, but it's apparently bad enough to warrant a DL stint for Zych. There is currently no timetable for his return, but that should become clearer once he begins his rehab process. Right-hander Steve Johnson had his contract selected from Triple-A Tacoma and was called up to take his spot on the roster.