However, the most intriguing arm in the system that got a start on Tuesday might have been right-hander Eddie Bonine, who signed a Minor League deal with the Padres last week after he was released by the D-backs.
Bonine got the start on Tuesday for Triple-A Tucson. He's doing so as a knuckleballer, a pitch that he has used occasionally before. He missed all of last season while recovering from Tommy John surgery.
Bonine, 27, appeared in parts of three seasons (2007-10) with the Tigers. He had a 6.30 ERA over four games with the D-backs' Triple-A team in Reno before being released.
Corey Brock is a reporter for MLB.com. Keep track of @FollowThePadres on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.