Three headers enabled Manchester United to come from a goal down and quell fears of a second straight group stage exit. The Premiership leaders went behind to a stunning Nelson effort but hit back through Nemanja Vidic, Ryan Giggs and Louis Saha to win 3-1 and finish top of Group F.
Arsenal manager Arsene Wenger admitted his team were overcautious in their goalless draw against Porto. The result was guaranteed to send both sides into the knockout stages irrespective of results elsewhere, and Porto hit the post twice before the game petered out.
Manchester United manager Sir Alex Ferguson said it was "fantastic" to see five British clubs in the Champions League last 16. Ferguson watched his side beat Benfica 3-1 to secure their berth alongside Premiership rivals Chelsea, Arsenal and Liverpool, and Scottish champions Celtic.
Arsenal and Porto played out an entertaining goalless draw in the Estadio do Dragao, that saw both sides through to the last 16 of the Champions League.
Crack German outfit THW Kiel look to be in prime position to grab a place in the quarter-finals of the Handball Champions League after a 37-33 away victory in the first leg of their Last 16 tie with French outfit Chambery Savoie HB on Monday.
It was bad night in Belgrade for Crvena Zvezda as they lost their 100% record, while the Serbian club could also be in trouble after there was some trouble in the stands.