In this MLB mock trade, the Boston Red Sox send star third baseman Alex Bregman to the Seattle Mariners in exchange for ace ...

During an appearance on Seattle Sports radio's "Brock & Salk," Passan alluded to one key reason he thinks Seattle will, or at ...

Brady Farkas talks about Seattle Mariners pitcher Luis Castillo's diminishing stuff and what that can look like. It can be really good and really bad at times and it's up to the manager and pitching ...

As Luis Castillo came set for what he thought would be his final pitch of the night, he had his trademark fist clench ready ...

Ben Williamson had an RBI double in the sixth inning, Luis Castillo tossed seven innings, and the Seattle Mariners beat the ...

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

Castillo went 4-2 with a 3.17 ERA in 11 starts with the Mariners after his trade and this year is 14-8 with a 3.20 ERA, even after giving up five runs in six innings in a key loss to the Astros on ...

Castillo’s changeup and sinker are getting more whiffs this year. He’s getting more whiffs over all. We return to the titular question: What is going on with Luis Castillo?

No matter what, Luis Castillo is a good starting pitcher. You see the velocity, you see the ground balls, the command is at least decent, those things are there. He’s a good pitcher.

Castillo doesn't appear injured, just ineffective. He averaged 97.1 mph on his sinker and 96.9 mph on his four-seam fastball. He was up to 98.3 mph with the sinker and 98 on the four-seamer.