The Northern Iowa volleyball team returns to Missouri Valley Conference action on Saturday at Bradley. A year ago, Bradley snapped U-N-I’s 69-match conference winning streak but Panther coach Bobbi Peterson says revenge is not their motivation. She says all but one of the players on this year’s team are back and she says they’d rather focus on playing well instead of revenge.The Panthers remain seventh-ranked nationally but Peterson says maintaining that rating is not their primary focus. She says they like being ranked and try to go out and prove they deserve to be ranked without putting too much emphasis on it.Both U-N-I and Bradley are 4-0 in the Valley.