Manchester United's grasp on the Champions League hangs by a thread after FC Porto left Old Trafford with a well-deserved draw - and two crucial away goals - on a disappointing night for the Red Devils. Carlos Tevez's strike five minutes from time looked to have given United an advantage they barely merited as they looked a pale shadow of a side on course to collect an historic haul of five trophies. But as Old Trafford breathed a sigh of relief, Porto delivered what could turn out to be the telling blow when Mariano scrambled home a last-minute leveler to rekindle dark memories of United's exit to the same team five years ago.

Pictures and goals of the match can be viewed below.

0-1 Cristian Rodriguez 4"

Cristian Rodriguez's strike



1-1 Wayne Rooney 15"

Wayne Rooney smoothly leads the ball past the Porto keeper

2-1 Carlos Tevez 85"

Carlos Tevez receives the applause of fans

2-2 Mariano Gonzales 89"



Mariano Gonzales gets to the ball before Van Persie