New Seattle Mariners reliever José Castillo reported to the big league club Thursday, one day after being claimed off waivers from the New York Mets.

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The M’s optioned left-hander Tayler Saucedo to Triple-A Tacoma (retroactive to Sept. 3) in a corresponding move.

Castillo, a 29-year-old left-hander, joins Seattle after making 21 appearances across stints with the Mets and Arizona Diamondbacks this season. He has a 4.98 ERA with 22 strikeouts and nine walks allowed over 21 2/3 innings this season.

The southpaw was effective in his limited action with the Mets, posting a 2.35 ERA with 19 strikeouts and six walks allowed in 15 1/3 innings.

A native of Valencia, Venezuela, Castillo has a 4.50 ERA in 62 innings over 61 gam

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