"His knee flared up, and we just need to take a step back," Angels manager Mike Scioscia said. "It flared up in Oakland a little bit, flared up toward the end of Spring Training. We're just going to make sure we get this behind us before he gets back out there."
It's an injury that originated for Nava last season while playing with the Red Sox, so Scioscia isn't sure if two weeks will be sufficient time off for the veteran outfielder.
"It hurts him, more than anything, running," he said, "but it affected his swing yesterday. That's something we need to address. The fact it keeps lingering is something we need to take care of."
Nava is batting .286 (4-for-14) through eight games with one RBI.
Ortega is tearing it up early on for the Bees, hitting .348 with a homer and seven RBIs. He hasn't appeared in a Major League game since 2012, when he picked up two hits in four at-bats for the Colorado Rockies.
"He definitely showed the ability [in Spring Training] to put the ball in play, use all fields," Scioscia said. "He'll get an opportunity right now."
Kerry Walls is a contributor to MLB.com This story was not subject to the approval of Major League Baseball or its clubs.