Ethier is coming off September arthroscopic surgery on his right knee which robbed him of power last year. But after an offseason of rehabbing, he has no restrictions on his workouts.
"He felt something when he was stretching and he went in with Sue [Falsone, trainer], but came back out to hit and did outfield work," manager Don Mattingly said. "It was in his upper middle back, but Sue said he came back out to see what he could do. If anything scared anybody, he wouldn't have been back on the field."