It turns out the tear is smaller than originally thought, and the 6-foot-4 lefty might pitch again this season.
"The doctor told me I can pitch again, and if it doesn't hurt then I probably don't need the surgery," Borucki said. "If it does hurt, then I'll probably have surgery. We don't know yet. I'm going back to the doctor (Tuesday)."
Borucki, the No. 1 senior in the state according to Prep Baseball Report, said before the injury scouts told him he could be selected in the fifth or sixth round of the Major League Baseball draft in June.
Scouts are eager to learn the true extent of the injury.
"That is part of it," he said. "I want to see if I can get back to the level I was and see how it plays out. A lot of scouts have been calling since they heard I might come back."
Borucki did not allow a run in winning his only three starts. He struck out 26 of the 52 batters he faced.
In the meantime, his play at first base has contributed to Mundelein's outstanding team defense, which goes hand-in-hand with the great pitching the Mustangs have been receiving from Jared Mandel (6-1, 0.85 ERA), Matt Langlie (6-1, 0.80 ERA) and Bryan Wiener (3-1, 1.22 ERA).
"Those three guys really stepped up," Mundelein coach Todd Parola said. "I knew it was going to be an enjoyable year with the seniors we have and good juniors, but to play as well as we have, I'm a little surprised."
If Borucki does return to the mound, it will most likely be as a reliever, assistant coach Jeff Sweno said.