FAYETTEVILLE — Arkansas pitcher Trey Killian’s stint with the USA Baseball Collegiate National team was shortened because of arm soreness.

But Killian said Thursday the injury is nothing severe.

"It’s just tightness, probably from fatigue," Killian said. "I think it was my arm telling me it’s time to shut it down and get rested and ready to come back for next season."

Killian, who made the national team after trying out in late June, went 1-1 with a 4.76 earned run average in three appearances during his summer stint. He began to experience soreness in his right arm, which led Arkansas coach Dave Van Horn — who coached Team USA this summer — and his staff to pull the plug.

"He got it looked at a couple of times by Team USA’s doctor and a couple of others and they didn’t feel like it was any structural damage," Van Horn said. "Then he got back here and they did the MRI and everything was clean. They said his elbow looked great, but he did have tendonitis and so he just needs to rest it and rehab it."

Killian’s last appearance for the national team came in a win against Chinese Taipei on July 5. Killian traveled to the Netherlands for the Honkbal-Haarlem Baseball Week tournament, but returned to Arkansas when the team headed to Cuba.

"I was kind of upset," Killian said. "But coming home and getting ready for the season with the Razorbacks, that’s what is most important."

Killian went 4-9 with a 2.30 earned run average in 14 starts last season. He’ll be the leader of a starting rotation that will likely include sophomore Zach Jackson.

The right-hander said he’ll be ready to get back on the mound for the start of fall practice in September. But Van Horn — who sat pitcher Jaen Beeks for a few starts late last season with an elbow injury — said Arkansas will remain careful with him.

"We felt there was nothing wrong with the ligament that he might be just having some possible tendonitis or strain," Van Horn said. "I still had Jalen Beeks fresh on my mind with his injury. So we shut him down."