On Sunday the Diamondbacks said Corbin, 24, had sustained damage to the ulnar collateral ligament in his elbow.
The left-handed Corbin will not make the trip to Australia for the Opening Series against the Dodgers.
Corbin, who was an All-Star last year, said he will get a second opinion on the diagnosis this week from surgeon Dr. James Andrews.
He will meet with Andrews to determine whether Tommy John surgery is needed.
If the surgery is done, Corbin will have to complete a 12-month rehabilitation process.
"We didn't see anything coming," Arizona manager Kirk Gibson said. "He hasn't had anything happen that would lead us to believe it."
"This is kind of all new to me, so it's disappointing," Corbin said in a news conference Sunday morning.
"I think it's just a freak incident," Corbin said.
In his second season in the majors last year, Corbin went 14-8 with a 3.41 ERA in 32 starts.
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