Sanchez lasted just 2 2/3 innings and gave up six runs on six hits, including two home runs, and four walks and a hit batter in the Storm Chasers' 7-5 loss to the Memphis Redbirds. In his other start for Omaha, Sanchez gave up just one run on three hits in 5 2/3 innings against Iowa.
Now, the Royals will decide if Sanchez is to get another Minor League start or return to the Kansas City roster. He's been out since May 8 with left biceps tendinitis.
Right-hander Vin Mazzaro is angling for a rotation spot along with lefty Will Smith. Mazzaro, in his second Kansas City start, pitched six shutout innings in Sunday's 2-0 win over Oakland and has a 2-0 record with a 2.25 ERA. Smith, 1-1 with a 6.75 ERA in two starts, will make his third start on Monday night against Minnesota.
Mazzaro made a good impression on manager Ned Yost.
"He threw the ball extremely well to get us through six innings. He kept his pitch count in good check, attacked the hitters for the most part," Yost said. "He did a great job of keeping 'em off-balance and keeping 'em off the board."
Yost wasn't ready to make any decisions just yet.
"But Vinnie did a nice job today and really kept his name in the hat," he said.