The New York Mets announced their decision to trade Luis Severino. on Tuesday, June 11.

After making his name as an ace for the New York Yankees, Severino struggled through injury and poor performance in the Bronx the last two years before reviving his career across town

Now, with the Mets facing an uphill climb for a playoff spot, Severino could be on the move. The 30-year-old righty has posted numbers reminiscent of his earlier days with the Yankees, pitching to a 3.25 ERA and giving up 0.6 home runs per 9 innings in 12 starts.

It’s indicative of the work that the Mets staff has done with Severino, helping him rely less on his fastball and changeup while mixing in more of his sinker and slider.

The Mets’ Sinker Revolution

A year ago , it was hard to see how Severino would have fetched much value in a trade deadline deal. Through the end of July 2023, he was saddled with a bloated 7.49 ERA with opponents were hitting .329 against him.

That resulted in the Mets getting him at a bargain deal, for $13 million over one year.

It’s no accident that Severino’s numbers have skyrocketed over the first two-plus months of the 2024 season. As FanGraphs’ Jay Jaffe pointed out in a piece on June 3, yes, Severino’s health has made a difference, but so has his mix of pitches.

“[Mets pitching coach Jeremy] Hefner’s staff-wide emphasis on an increased use of the sinker — which the Mets are throwing 25% of the time, third in the majors and nearly double last year’s 12.9% rate — has paid particular dividends for Severino, who threw the pitch just 1% of the time in 2022 and 2.8% last year but is up to 20.3% this year,” Jaffe wrote.

As a result, Severino is getting more outs despite striking out fewer batters on average and walking players at about the same rate he always has. His ground ball percentage has shot up almost 10% compared to last year (42.2% to 52.0%) while his soft contact rate has climbed with it (14.4% to 21.8%).