Myers was injured last Saturday during a game against the Arizona Diamondbacks when he braced himself with his left hand after colliding with Diamondbacks shortstop Nick Ahmed while running the bases.
He received a cortisone shot and underwent an MRI, which revealed a fluid buildup and an enflamed tendon.
"He went through a number of tests, and the reports were pretty positive," Padres manager Bud Black said to MLB.com. "There is quite a bit of fluid surrounding that tendon, which is causing a lot of discomfort. He's going to be down for a couple of days. We're hoping that in two, three, four days that this will resolve itself pretty quickly."
Myers won’t go on the disabled list for now, but will instead take days off while wearing a brace on his left wrist.
Myers had made the move from center to first base after Yonder Alonso was put on the disabled list this week with a right shoulder injury.
"The wrist, the hands, the fingers, it's tricky sometimes," Black said. "You don't know until he gets back out there and starts swinging. My fingers are crossed, but I think Wil feels pretty good about diagnosis, and so do the doctors."
Myers leads the Padres in hits and runs scored is hitting .291 with five home runs and 19 RBIs this season for San Diego (19-17),
The Padres are second in the National League West standings, four games behind the Los Angeles Dodgers.
- Scooby Axson