Coming off Tommy John elbow surgery in 2009, Aviles feels he is fully recovered and can make the longer throw from shortstop to first.
"My arm's feeling good," said Aviles, who has made three starts at short this season. "I was in [Triple-A] Omaha for about a month playing shortstop every day and it felt good then. I can't see why it won't now."
Whether playing second base or shortstop, Aviles is committed to doing whatever is asked of him to help his team win.
"It's just one of those deals where, right now, an unfortunate incident happened with Yuni [Tuesday]," Aviles said. "I'm basically here to help the team win, and if that's me playing shortstop for a few days then going back to second, then that's perfectly fine.
Royals manager Ned Yost justified his decision to move Aviles to shortstop.
"I feel fine putting Mike over there right now, kind of in a limited basis," Yost said. "I think eventually he'll be able to play over there every day. I don't hesitate to do it now."