Mariners' Matt Koch: Outrighted to minors

The Mariners outrighted Koch to Triple-A Tacoma after he cleared waivers Thursday.

Koch's stay on the Mariners' 40-man roster and in the big-league bullpen lasted just over two weeks before he was designated for assignment last Friday. He appeared in four games for Seattle, giving up four earned runs on five hits and a walk over 4.1 innings.