This story is part of Peak, The Athletic’s desk covering the mental side of sports. Sign up for Peak’s newsletter here.In any other line of work, it would have been extremely bizarre behavior.On late Monday night, in the midst of a 0-for-36 slump at the plate, Seattle Mariners catcher Cal Raleigh finished a game against the Houston Astros, retreated to the clubhouse and showered in full uniform.He did so at the behest of Mariners starting pitcher Logan Gilbert, who suggested Raleigh wash off the “bad mojo.” The stratagem appeared to work: The next night, Raleigh finished with two hits in a 10-2 victory, his first two-hit game since April 25.In the moments after that game, Raleigh did not necessarily sound like a man convinced by the power of the act. He joked with reporters that his first thought after ending his slump was that people would make a big deal out of his shower.“I was kind of just, like, rolling my eyes,” he said.But who’s to say it didn’t help?For baseball players, the superstitious ritual of showering in your uniform has been around for decades.Leo Cárdenas, an All-Star shortstop for the Cincinnati Reds in the 1960s, was said to shower in uniform “to wash the evil spirits away.” Dave Concepción, another Reds shortstop, once tried the act in the 1980s. And in 2004, Royals manager Tony Peña hopped in the showers with his uniform on during a six-game losing streak.