Arizona has gone extra innings in two of its last three games, including a 15-inning, 2-1 win over the Reds in their series opener on Monday night.
Schultz was on the opening day roster and appeared in one game before being optioned to Triple-A Reno on March 29. He went 8-7 with a 5.75 ERA in 21 starts. Manager Kirk Gibson figured to use him in a long relief role if needed.
The Diamondbacks optioned outfielder Alfredo Marte to Reno. He batted .258 in 16 games with one homer and seven RBIs.
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