barcelona's class proved too much for manchester city over the course of two legs in their last 16 champions league tie and while lionel messi was once again the star for the home side as he tore city to shreds at the nou camp, the argentine hit one stumbling block in the shape of  keeper joe hart the england stopper made an incredible 10 saves to deny barca during the game, so here sportsmail looks at the best images of their on pitch battle barcelona's lionel messi and manchester city keeper joe hart embrace at the final whistle at the nou camp  hart and messi share a hug after barcelona sealed a 3 1 aggregate win to progress to the champions league quarter finals  hart lunges at messi during the game with the argentine looking to take the manchester city keeper on  perhaps fearing the worst, hart closes his eyes as he hopes to make a clean tackle on messi with his onrushing challenge  with the outside of his left knee, hart crucially takes control of the ball away from messi who was already past the keeper looking to score  seeing he has made a stop, hart's eyes open looking at the ball as messi is left looking back at the manchester city keeper  with the ball already gone between the pair of them, hart is left reflecting on a fine save as messi sees a good chance to score pass  city defender aleksandar kolarov arrives on the scene to clear as messi checks his run having been denied by hart  messi, having turned bacary sagna, was again denied by hart trying to bend a shot around the keeper  hart made 10 saves in the match and messi was left with no way to get past as the keeper forced him out wide in another one on one chance  in the heat of battle, the players show mutual respect with a clap of the hands following another on pitch duel 
barcelona manchester city the nou camp the uefa champions league lionel messi barca premier league joe hart messi pep guardiola hart england no 1 stars during champions league
barcelona defeated manchester city 1 0 at the nou camp to progress to the uefa champions league quarter finals  lionel messi produced a stunning performance as he led barca's attack against the premier league champions  city lost 3 1 on aggregate but the result could have been much worse had joe hart not made 10 outstanding saves  read: messi was magnificent even pep guardiola was left gasping, gaping and giggling by the barcelona genius  read: hart earns the plaudits as england no 1 stars during champions league defeat by barcelona 