Seventh inning, September 20. The Mets were already down 7-2 to the Phillies — a team going nowhere in a 71-85 season. Jefry Yan got the third out anyway, and then he did it: the slide step. Down to the ground, signature move, no apologies.
The celebration that belongs to ‘La Sentencia’ — the nickname the Dominican reliever carries — was back. Clean and fully his own.
How It Started: Cleveland, August 5
The slide step was born on debut day. On August 5, 2026, in Cleveland, Yan became the first Mets pitcher all season to hit 100+ mph on the radar gun. When he struck out Ángel Martínez with an 88.7 mph slider to close the inning, he leaped into a mid-air split and landed in a squat. The video went everywhere immediately.
After the Mets won 6-5 in 10 innings that night, Yan didn’t walk anything back. «If they want to yell at me, if they want to boo me, they can do whatever they want. I’m in my zone,» he said. And on the slider that ended it: «Once I had him with two strikes I said, you know what, I’m going to throw that slider.»
Getting to that moment wasn’t quick. Yan, born August 17, 1996, in San Rafael del Yuma, Dominican Republic, spent 2025 in Triple-A with the Rockies, played in Japan’s NPB with the Saitama Seibu Lions in 2024, and signed with the Mets on a minor league deal on August 1, 2025. When he finally reached the big leagues, he wasn’t going to arrive quietly.
The Slide Step Evolved — It Didn’t Disappear
Between his debut and September 20, the Mets optioned Yan to Triple-A Syracuse. He made the most of it: in 14 appearances he went 2-1 with a 2.40 ERA and 32 strikeouts in just 15 innings. When he came back up on September 17 against Baltimore, the celebration returned in a more grounded form — no acrobatic leap, just the slide step down to his knees. Some read it as maturity. What mattered is that it didn’t go away.
Sunday’s game against Philadelphia was a loss — Cristopher Sánchez picked up win No. 18 on the season, the most wins in MLB in 2026. But when Yan closed out his inning, the slide step came right back with him.
The Numbers That Back It All Up
The celebration gets the attention. The Statcast numbers are what make it stick. Here’s where Yan stands in 2026 across 15 games and 17.0 innings:
- ERA: 4.24 · WHIP: 1.50
- xERA: 3.82 (expected ERA based on contact quality allowed)
- Strikeouts: 23 · Walks: 11 · K%: 29.9%
- Fastball velocity: 97.7 mph average — 92nd percentile
- Fastball spin rate: 2,486 rpm — 92nd percentile
- Whiff rate: 36.3%
- Batting average against: .231
- Exit velocity allowed: 88.9 mph
- Barrel rate allowed: 4.8%
Elite velocity. Elite spin. Soft contact. The slide step is the signature — but those numbers are the argument.
Yan waited a long time to get here. He wasn’t going to show up and blend into the background.
