San Diego Hatches a Manaea-cal Plot in Trade With A’s

If you thought the Padres were done tinkering with the starting rotation, you thought wrong. On Sunday morning, San Diego agreed to a deal with the Athletics, acquiring pitchers Sean Manaea and Aaron Holiday in exchange for pitcher Adrian Martinez and infielder Euribiel Angeles.
In a season in which teams continued to be conservative at stretching out their starting pitchers, the A’s were more aggressive with the injury-prone Manaea last year. Over the short-term, that proved to be successful, as he remained healthy and threw 179 1/3 innings, his most as a professional. The plaudits aren’t just quantity; he set career-highs all over the place, from WAR (3.3) to full-season FIP (3.66) to strikeout rate (25.7%).
How did Manaea do it? The likeliest reason is velocity. No, he didn’t suddenly become Aroldis Chapman or Brusdar Graterol, but every pitcher — with the possible exception of knuckleballers — requires some level of velocity to achieve effectiveness. In Manaea’s career there’s nearly a 100-point delta in batter slugging percentage between his sinkers going 91 mph or slower (.491) and those traveling 92 mph or faster (.397). On a player-to-player comparison, I get in the neighborhood of 40 points of SLG being the norm.
Similarly, Manaea also gets a lot more strikeouts when he’s throwing harder. More than three-quarters of his career strikeouts from sinkers come from the harder ones despite less than half of his sinkers being in the category. It’s not just chicken-and-egg; this pattern existed prior to this season. Sinkers aren’t traditionally used to punch out batters, but for Manaea, they’re an important weapon. Statcast credits him with 114 strikeouts on sinkers in 2021, the third-most of the Statcast era and the most since Chris Sale had 124 in 2015 (David Price has the crown with 125 in 2014).
It’s not even that Manaea’s sinker is a particularly nasty pitch, such as a splitter in fastball’s clothing; he actually gets less break on his than the average pitcher. It’s that his deceptive delivery and his excellent control basically function as a force multiplier to his velocity, effectively reducing the distance between the mound and home plate. Even a 30-mph fastball can strike out Juan Soto if you get to determine the sliver of time he has to make a decision. Read the rest of this entry »