Louisville with an amazing 3rd set comeback. As for worrying, we already swept Louisville on their home court. I personally think if we can beat PSU we will be able to beat Pitt or Louisville as Pitt has been taken to 5 many times this season. Babcock is good (but arrogant), but I am not sure Pitt has the depth of some BIG teams.
Louisville finished strong and I think Pitt was lost in the 4th set mentally after giving up 4 sets points in Set 3. Louisville's defense and serve has improved since the last time Nebraska played them in September.