I don't like how some people assume Sunderland will roll over, didn't they proper park the bus last time we played them?
My priority would be the league, champions league would be a bonus, but as it stands Liverpool look out of the champion league (unless they destroy Chelsea at the bridge), and it's up to us to prevent them from winning the league really.
My team vs Sunderland would be
Foster
Neville - Evans - Vidic - Evra
Ronaldo - Carrick - Fletcher - Giggs
Rooney - Macheda
Subs - Kuszchak, O'Shea, Park, Nani, Scholes, Welbeck, Tevez
My Porto team would have to be selected closer to the time, looking at fitness / injuries.