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 ...

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

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

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

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

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 ...

Seattle will send Luis Castillo (4-5, 3.69 ERA) to the mound on Sunday against fellow right-hander Jack Leiter (4-5, 4.55) of Texas.

While the Seattle Mariners are doing their best to stay relevant in the American League West Division race, all eyes are on ...

Suddenly, Josh Naylor is a Seattle Mariner, the first of several possible additions ahead of the trade deadline. The ...