Valencia, Athletic and Pathetico all through. Simeone's side already had after the first leg but Valencia and Athletic still had work to do. I am really excited about Athletic this season and the next few years simply because of the number of talented youngsters they have in the team - all successfull for Spain in U-17, 19 and 21 levels and all almost certain to be starters for the NT in the near future (Martinez already has done that).
United will be a tough test though. Athetic's run may just end here, but given that they are on track for a Champions League spot next season and are in the final of the Copa del Rey, I'd say good job Marcelo Bielsa.
P.S - I can't find that predicitions thread but I do believe I had picked Athletic for the Europa League.