"All in all, enough of a buildup as we head into the playoffs," manager Aaron Boone said. "Obviously not as sharp as he was in his last two, but I thought a nice rebound from the first inning where he struggled a little bit."
Severino had four walks and a throwing error over three innings in the Yankees' 9-4 loss to the Texas Rangers on Saturday night.
Rougned Odor had a career-high six RBI for the Rangers, including his 30th homer for a grand slam in the sixth to make it 8-1.
Odor put the Rangers ahead to stay with a two-run double in the first, the only hit and runs allowed by Severino (1-1). The right-hander had already walked two batters and committed his error on a pickoff attempt by then.
After three walks in the first inning, Severino retired seven of the last eight batters he faced. After feeling uncomfortable in the first, he struck out the side in the second -- all swinging.
"In the second and third I felt more like myself," he said. "It was everything. I didn't feel like myself (in the first). ... The fastball was all over the place. Stride, I changed everything."
When asked if he was ready for the playoffs, Severino responded, "Yeah, of course. That was not my best start, but it doesn't matter. The most important thing is that I feel healthy."
Severino has pitched only 12 innings this season after recovering from a lat injury that had sidelined him since spring training. A 19-game winner in 2018, he struck out four while throwing 72 pitches against 14 Texas batters. He had tossed nine scoreless innings before that, four against the Los Angeles Angels and five against Toronto with nine strikeouts last Sunday.
The Rangers played the final night game at their ballpark before moving across the street to a new stadium next season. A day game Sunday wraps up the 26th and final season at the stadium that opened in 1994 as The Ballpark in Arlington.
Odor raised his batting average from .202 to .204, still the lowest among the 136 major league qualifiers. But he has 93 RBI along with the 30 homers, nine in September.
"He's finishing strong. The only thing I really challenge is the season's going to end after tomorrow," manager Chris Woodward said. "I hope he has some truth and some understanding of what he's doing right now, because if this is the guy we could have all year, we'd have a superstar."
Yankees leadoff hitter DJ LeMahieu went 0 for 3, his average slipping two points to .329. He trailed White Sox shortstop Tim Anderson (.337) for the major league lead. Anderson didn't play in the first game of Chicago's doubleheader before going 0 for 2 in the nightcap.
The Yankees led 1-0 after Aaron Judge tripled on a towering flyball to the left-center gap in the first and scored on a sacrifice fly by Brett Gardner. They didn't score again until Didi Gregorius had a three-run double with two outs in the ninth.
Jonathan Hernandez (2-1), the second of six Texas pitchers, threw two scoreless innings.
The Rangers had five stolen bases, including two double steals in the first inning. They lead the majors with 128 stolen bases, 11 more than Kansas City. The Rangers have never finished a season with the most stolen bases in the majors. They led the American League with 126 in 1972, the franchise's first season in Texas, but were second in the majors behind Cincinnati's 140.
Yankees: New York got encouraging news about another starter when an MRI showed only nerve irritation for James Paxton. The lefty was removed after the first inning of the series opener Friday night, his last start before the playoffs, because of tightness and discomfort in his buttocks.
Paxton, who had won 10 consecutive starts before that no-decision in the Yankees' 14-7 win, said he was taking some pills to calm the irritation. Boone considered it minor and said he wasn't even concerned about it.
All-Star catcher Gary Sanchez, who returned Friday after missing 10 games with left groin tightness, didn't play. New York also held off again slugger Edwin Encarnacion's return from a left oblique injury. The 36-year-old missed his 13th straight game.
Encarnacion said after the game he's feeling much better.
"If I'm not 100 percent, I'm close," he said through a translator.
He said he would be ready to play Friday in the Division Series opener against Minnesota even though he's not ready for a game just yet.
"I don't want to have a setback," Encarnacion explained.
The Rangers play their 2,081st and final regular-season game at the ballpark they have called home since 1994. They are moving across the street next season to a new $1 billion-plus stadium with a retractable roof. Masahiro Tanaka (11-8) is expected to pitch for the Yankees, but might not start. Lance Lynn (15-11) goes for the Rangers.
More AP MLB: https://apnews.com/MLB and https://twitter.com/AP-Sports
Odor smashes grand slam in Rangers' rout of Yankees
Rougned Odor connects on a grand slam, part of a six-RBI day in the Rangers' 9-1 win vs. the Yankees.