Senior Jake Long, the bell cow of the Nebraska tight ends, is sidelined indefinitely with an injury.

Redshirt freshman walk-on Jared Blum, an up-and-comer from Gretna, injured his knee this week and is out for the season.

Don't underestimate the impact of Blum's loss in the tight end picture.

"Sorry to see him go down; he was having a good camp," Husker offensive coordinator Tim Beck said.

Now what?

"We're giving everybody opportunities," said Beck, mentioning, in order, redshirt freshman Trey Foster (Lincoln Southeast), sophomore David Sutton (Lincoln Southeast) and true freshman Cethan Carter (Metairie, La.).

"Those guys, mainly, would be probably the three top guys we've been repping in there most of the time," Beck said.

The 6-foot-4, 240-pound Blum was working with the second-string offense, and at times the first string, Beck said.

"He could've been a third or fourth guy," Beck said. "It's hard to tell right now. Each one brings a little something different. It depends on what we're trying to do."

Redshirt freshman Sam Cotton, also out of Southeast, has been slowed by injury.

Beck was asked specifically about Foster, a 6-foot, 240-pound walk-on.

"He's done a really good job, understanding where he's supposed to be and what he's supposed to be doing," Beck said. "He's been catching the ball really well for us. Gives us a good passing threat. And he's done a nice job blocking."

No word on Long's injury. We'll ask Bo Pelini on Saturday, the head coach's next availability. Long is NU's lone returning tight end with significant playing experience.