The freshman from Edwardsville, Ill., strained the ulnar nerve in his right (throwing) arm while throwing a fifth-inning pitch in Saturday's 5-2 loss at Alabama. A magnetic resonance imaging scan of Seibert's arm this week revealed no ligament or tendon damage.
It's similar to the injury which caused Seibert to miss most of his senior season in high school and regulated him to first base during summer ball. The good news is this injury doesn't sound as severe, according to Seibert.
"It wasn't as sore this time afterwards," Seibert said. "Last year, I could hardly even bend my elbow."
Seibert won't pick up a ball until early next week and the only remedy for the problem is rest. Once he starts throwing, he's supposed to take it slow in order not to risk aggravating the nerve.
"I'm just going to try to come back as soon as possible," Seibert said.
Van Horn said without Seibert starting his third straight Saturday, the rest of the weekend's rotation won't be determined until after Nick Schmidt's Friday night start.
"We know we're going to have to have somebody step up." Van Horn said. "We're just going to go with the best guy we've got (Saturday) in looking at the situation and go from there."
In 18 appearances, Seibert is 5-2 with a save while pitching the third most innings (58 1/3) on the staff. He's second on the team in ERA (2.93), strikeouts (52) and opponents' batting average (.230).
Seibert Sidelined For Series
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