As bad as his numbers looked, Wells insisted he had felt OK at the plate. The time off gave him the chance to work on his swing in the batting cage.
"I never lose confidence," he said. "As soon as you lose confidence, you're done."
The Rays trailed 3-1 when the Yankees intentionally walked Evan Longoria with two outs to get to Myers.
The rookie came in hitting .190 in five games since he was called up from the minors at the beginning of the week. He'd had exactly one hit in four straight games before going 3 for 4 on Saturday in his first start as a designated hitter.
Longoria was 2 for 2 with a double and a solo homer that accounted for the Rays' lone run when the Yankees intentionally walked him. On a 1-2 count, Myers hit a high fly to center. Brett Gardner jumped at the fence and the ball bounced off the webbing of his glove and into the stands, though it appeared to already be over the wall when he touched it.
"It was just awesome to be down two strikes and the crowd cheering and to be able to put a swing like that on it," Myers said. "Just a cool experience."
Rays rookie starter Alex Colome is yet to allow an earned run over 10 innings in two career starts. He gave up three unearned runs, five hits and five walks with three strikeouts in 4 1-3 innings. The Rays handed out a season-worst nine walks.
"Walks really kicked our butt today," Maddon said.
With two outs in the third, Almonte singled on a two-strike count to drive in two runs and give the Yankees a 2-1 lead. He walked with the bases loaded in the fifth.
NOTES: Myers became the first visiting player to hit a grand slam at Yankee Stadium for his first career home run since Detroit's Ricky Peters in 1980. Myers is the second player in club history with a grand slam for that first homer. Jorge Velandia did it in 2007, also against the Yankees. ... Rays LHP Alex Torres allowed no hits and struck out three in 1 2-3 innings, extending his scoreless streak to open the season to 20 innings. ... Yankees 2B Robinson Cano had a career-high four walks. ... RHP Ivan Nova (2-1) looks to extend his career record against Tampa Bay at Yankee Stadium to 5-0 on Sunday, the park's 67th Old-Timers' Day. Rays RHP Chris Archer (1-3), their second straight rookie starter, is 0-5 on the road in his career.