Mariners' Blas Castano: Demoted to Triple-A

The Mariners optioned Castano to Triple-A Tacoma on Thursday.

Castano joined the Mariners' bullpen after being called up May 23 and made his MLB debut May 28. It was the lone appearance he made as he allowed three earned runs on three hits and two walks across three innings of relief. As a corresponding move Thursday, Casey Lawrence was selected from Triple-A Tacoma