SEATTLE (AP) - The Seattle Mariners today claimed right-hander Luis Munoz off waivers from the Pittsburgh Pirates and optioned him to Double-A West Tennessee. The 26-year-old Munoz was designated for assignment by the Pirates on Sunday. Munoz had a combined 4-7 record with a 6.03 ERA in 20 games ... 19 of them starts ... between Triple-A Indianapolis and Double-A Altoona this season. He was signed by Pittsburgh as a non-drafted free agent in July 2000 and has spent his entire career in the Pirates organization. With the addition of Munoz, the Mariners now have 40 players on their 40-man major league roster.
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