Ralf Rangnick is confident Cristiano Ronaldo can help fire Manchester United into the Champions League quarter-finals just 72 hours after the veteran's superb hat-trick against Tottenham. All eyes will be on Old Trafford as Atletico Madrid come to town on Tuesday, when the round-of-16 encounter will resume at 1-1 thanks to Anthony Elanga's late goal for the fortunate Red Devils in Spain. United are attempting to reach the Champions League last eight for just the third time since the retirement of Sir Alex Ferguson, who was in the stands on Saturday as Ronaldo scored his first Premier League hat-trick since 2008.