Port Adelaide rookie ruckmen Jarrad Redden and Daniel Bass will be given opportunities in the 2011 NAB Cup following a shoulder injury to Matthew Lobbe.

"A couple of our rucks, Jarrad Redden, will have a run around," Power coach Matthew Primus said.

"Matthew Lobbe unfortunately dislocated his shoulder on Saturday morning so we want to have a look at Redden and Daniel Bass, one of our rookies, give them a bit of time in the ruck. It's pretty important to have a look at those guys."