Susan Slusser of the San Francisco Chronicle examines Athletics closer Blake Treinen’s improved results since coming to Oakland last summer. The big righty has always shown phenomenal pure stuff in the majors, but had not quite figured out how to maximize it on the hill. While he’s handing out less walks than before, he’s also working in the zone less than in prior years. And he has generated less grounders (a still-impressive 53.3%) in exchange for a jump in swinging-strikes (all the way up to 18.8%). Treinen credits experience gained through “the maturation process.” Whatever the precise cause, the results — a 1.19 ERA with 10.7 K/9 and 2.8 BB/9 over 22 2/3 innings in 2018 — certainly suggest that he has settled in nicely.

Here are a few more relief-related notes from out west: