Mitch Keller

Keller attacked a left-handed-heavy Marlins lineup with tons of fastballs in the strike zone. He's had a tendency to nibble in the past, so it was nice to see him go right at them. Also notable, Keller really leaned on his new kick-change - a popular changeup variant that has swept across the league - and used it as his second most frequent offering against lefties after barely throwing any type of changeup last season. The Marlins are an offense to target this season when pitchers are scheduled to face them and Keller took care of business in this one. He's scheduled to face the Rays in his next start.

Keller, Bailey Falter and Andrew Heaney will close out the remainder of a four-game series against the Marlins after ace Paul Skenes takes the ball for his first-career Opening Day start. We're assuming fifth starter Carmen Mlodzinski will make his season debut on Monday against the Rays, but that hasn't been finalized.

Keller struck out five batters on the impressive afternoon and did not issue a base on balls. The only baserunner against him came on a leadoff single by Triston Casas in the second inning and he never advanced past first base. The 28-year-old right-hander has been exceptional during Grapefruit League action, posting a 2.40 ERA, 1.20 WHIP and a 13/7 K/BB ratio over 15 innings.