Right-handed pitcher Luis Castillo is scheduled to take the mound for the Mariners (54-47) at T-Mobile Park in Seattle. His ...

Wednesday's start was one of Luis Castillo’s worst of the season, as the Mariners’ veteran allowed six runs over five innings ...

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The Mariners were unable to unseat one of the hottest teams in the National League and further reaffirmed the need to improve ...

The Seattle Mariners have been heavily linked to Arizona Diamondbacks' third baseman Eugenio Suarez as the trade deadline ...

Get Mariners vs Brewers baseball betting preview, spread and over/under insights for their matchup on July 23.

Luis Castillo reacted to his stellar effort against the Houston Astros in the Seattle Mariners' victory on Friday night.

Randy Arozarena hit a solo home run and Luis Castillo threw 6 2/3 scoreless innings as the Seattle Mariners beat the Houston ...

The veteran Mariners pitcher put together his best outing of the season and clinched a series win for his team Saturday.

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Mariners ace Luis Castillo, tabbed as Seattle's opening-day starter, has his sights set on starting the All-Star Game at T-Mobile Park and winning the AL Cy Young Award.

Luis Castillo pitched seven strong innings and the Seattle Mariners posted a nine-run fourth inning en route to a 10-1 win over the host Houston Astros on Friday.