SAN FRANCISCO -- Chris Young was prepared for the worst Tuesday morning when he tested out his right quadriceps muscle.
"This morning I thought I was going to wake up and it was going to be real sore, and it wasn't too bad," Young said. "I haven't run or anything, but hitting is fine and range-of-motion stuff is fine, so I don't think it's anything serious. Just a little nagging injury, and I'll try to get it right as soon as I can."
Young felt the quad "grab" while running to first base in the eighth inning Monday afternoon.
D-backs manager Kirk Gibson said it was likely that Young would be out three to seven days, so the club brought up outfielder Adam Eaton from Triple-A Reno.
Eaton has hit at each level in the Minors, and the remaining weeks of the season provide an opportunity for the D-backs to get an extended look at him.
Young said he has not thought about what Eaton's promotion might mean for his playing time.
"Not really my call," Young said. "The team is free to do whatever they think is right. As far as I know, we're still trying to win games and that's all we're focusing on right now. I don't really think about anything any deeper than that."