"We're just going to strengthen it back up and go from there," Miley said. "It's nothing serious, just a little tight and the ball isn't coming out the way I want it to, like a little dead arm a little bit, a little tired, I guess."
"He just kind of had a tired arm," Arizona manager Kirk Gibson said. "Do you keep going and pushing through it? Or do you do what we're doing and try and stay on target for Opening Day? Right now is a good time, we've still got time to do that."
Gibson also referred to the problem as a "dead arm," which is a common issue this time of year. Pitchers tend to hit a wall after two or three spring training outings and need a few days off to recuperate.
Miley, 26, went 16-11 with a 3.33 ERA in 194 2/3 innings last season, a performance that earned him a spot in the All-Star Game and a second place finish in the NL Rookie of the Year voting. He is scheduled to join Ian Kennedy, Trevor Cahill and Brandon McCarthy in the Arizona rotation.
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