Thanks to a rainout last week bunching up the schedule, the Red Sox needed to call up right-hander Rubby De La Rosa to pitch Wednesday's game against the White Sox.
Workman, who wouldn't have pitched again before the All-Star break, was the odd man out. The righty is 1-3 with a 4.13 ERA. He has kept the Red Sox in almost every game he's pitched.
"Definitely it's not ideal, it's not what I was hoping to hear after the game, but it's part of it," said Workman. "I've got to keep getting my work in, keep getting better, and get ready to throw again."
As for De La Rosa, the Red Sox hope he can pitch like he did during his last stint in the rotation, when he posted a 2.51 ERA in five starts while filling in for Clay Buchholz.
Ian Browne is a reporter for MLB.com. Read his blog, Brownie Points, and follow him on Twitter @IanMBrowne. Stephen Petrella is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.