9:45: And that's all from us for the evening. Join us on Wednesdsay as Arsenal host Bayern Munich and Atletico Madrid travel to Milan. Thanks for reading. 9:40: And that's full time. Barcelona take a healthy lead with them to the Nou Camp. FULL TIME Manchester City 0-2 Barcelona (Messi, 53, Alves, 89) Bayer Leverkusen 0-4 Paris Saint Germain (Matuidi, 2, Ibrahimovic, 39, 43, Cabaye, 86) 9:33: And if you haven't noticed, PSG have put a fourth past the hapless Leverkusen. Lucas Moura pulls the ball back for former Newcastle maestro Yohan Cabaye who side foots the ball into the back of the net from 18 yards. 9:32: And just like that Barcelona make it two. With seemingly nothing on, Alves and Neymar combine excellently at pace on the right, bewildering Clichy and Lescott. Alves bursts into the box and toe pokes the ball underneath Hart. Goal! Manchester City 0-2 Barcelona (Dani Alves, 89) Goal! Bayer Leverkusen 0-4 Paris Saint Germain (Yohan Cabaye, 86) 9:30: Silva again threatens to prise open Barcelona, swinging in another excellent ball after jinking into the space that is just out of Dzeko's reach. Corner is awarded, but it's wasted. 9:28: Barcelona's 'second', was it offside? 9:26: Silva finds Negredo with another stunning ball and the striker tests Valdes, but the referee decides the City man fouled Pique in the build up. 9:23: Barcelona have a goal ruled for offside but perhaps it should have stood. Xavi picks out Fabregas with a wonderful pass and the former Arsenal skipper side foots it across goal where Pique had eagerly got up to tap home and complete a simple but gorgeous goal. It won't count, however. GOAL DISALLOWED - Barcelona 9:21: City maintain this period of pressure on Barcelona before inexplicably turning and sending the ball back to Joe Hart. There's too much on it however and Hart can't keep the ball in. Fortunately, Barcelona fail to work anything from the resulting corner. 9:18: Good save from Valdes! Toure plays a wonderful cross field ball to the marauding Zabaleta who cushions a first time pass into the path of Silva who has cut in beside him. The Spaniard hits a first time effort with his weaker foot and Valdes does well to get down quickly and collect. 9:16: Mascherano is booked for a silly challenge on Fernandinho. 9:15: Happy days for City as Neymar jersey is introduced for Alexis Sanchez. The tireless Negredo has also been replaced by Edin Dzeko. 9:12: PSG have a fourth goal chalked off against Leverkusen after Ezequiel Lavezzi is adjudged to have been offside in the build up to deny Leverkusen's Philipp Wollscheid being 'awarded' an own goal. It hasn't all been good news, however, as Leverkusen were reduced to 10 men after defender Emir Spahic received his second yellow card of the night after taking down Lucas Moura. Nick Howson at the Etihad Stadium "City start the second half the way they began the first and Barcelona make no mistake in taking full advantage. Perhaps some debate over whether Messi was marginally outside the area upon being tackled by Demichelis but it is nothing short of what Barcelona deserve. "A reshuffle from Manuel Pellegrini was obligatory rather than a luxury and the fear is that even with the second leg to come at the Nou Camp, the reaming quarter is already an exercise in damage limitation for City." 9:08: Alves and Alexis play a beautiful one two on the edge of the penalty bop that frees the full back inside the area. Alves appears to be looking for the cutback but then opts to toe it towards the far post. It's a good effort that is centre meters away from Hart's right hand post. 9:06: Barcelona switch play to the right where Dani Alves has galloped into space. The Brazilian scoops the ball infield where Xavi shirts is unmarked but his first time effort sails just wide. City living a bit dangerously there. 9:03: Great stuff from City as they look to prove they are still in this. Silva deftly plays the ball into Nasri who drives towards goal before playing an excellent one two with Negredo ahead of him. The Frenchman moves infield and lets fly with a shot on goal but it's blocked, and Barcelona regain possession. 9:01: City were clinching on immediately after the goal as Barca launched a flurry of efforts to work their way into the box. Iniesta once again fashioned the best opportunity but the home side manage to eventually scramble the ball away. 8:59: Demichelis was never going to win that tackle from Messi and was rightly shown a red card. There was a brief question as to whether the first contact took place outside the box and City may have a case, but it is very close. 8:57: City subs, Joleon Lescott in for Aleksander Kolarov and Samir Nasri replaces Jesus Navas. 1-0 down and with a man sent off, Pellegrini really has to nail these changes. 8:55: Barcelona take the lead from the penalty spot! Jesus Navas is caught in possession on the right flank but the referee isn't interested in demands for a free kick. Iniesta takes full advantage and plays a sumptuous through ball into the path of Messi who has an extra yard or two on his marker Demichelis. The City defender slides for a last gasp interception, misses and is shown a red. Messi calmly strokes the ball home from the spot. Goal! Manchester City 0-1 Barcelona (Lionel Messi jersey, 53, pen) RED CARD - Martin Demichelis (Manchester City) PENALTY - Barcelona 8:50: Messi looks to have overrun the ball as he bears down on goal, drawing Kompany across in the process, but the Argentine does excellently to drag the ball around him and play in Fabreags who has emerged on the left. Demichelis and Zabaleta do well to double up the former Arsenal captain and snuff out the danger for now. 8:48: Neat start to the second half from City who are patient and measured in their efforts to take the initiative in this contest. 8:45: And Barcelona get us back underway at the Etihad. 8:36: Last year Bayer Leverkusen folded rather spectacularly against Manchester United as David Moyes' side ran out 5-0 winners at the BayArena and PSG look eager to inflict worse damage on their German opponents this evening. An opener two minutes in from Matuidi gave the Ligue 1 champions the lead before Ibrahimovic virtually ended the tie with two quick fire efforts five minutes before half time. 8:32: It is still goalless between Manchester City and Barcelona and Nick Howson gives us the verdict thus far live from the Etihad Stadium. Nick Howson at the Etihad Stadium "After allowing Barcelona to dictate for the opening 20 minutes, City have finally come to the party on their big night. Their physicality is starting to become a real factor and almost led to the opening goal after Valdes was fortunate to win a foul from Silva's free-kick "Barcelona have shown all the style and panache you'd expect but none of the cutting edge, only testing Joe Hart with one effort from Xavi from outside the box. The underlining threat is obvious – not least the concern of the home crowd every time Messi picks up the ball - but so far City are standing firm. Coming to the boil nicely this one." HALF TIME Manchester City 0-0 Barcelona Bayer Leverkusen 0-3 Paris Saint Germain (Blaise Matuidi, 2, Zlatan Ibrahimovic, 39, 43) 8:29: Ibra makes adds his second in four minutes to give PSG a healthy lead in Germany, smashing an unstoppable left footed effort into the top corner. Goal! Bayer Leverkusen 0-2 Paris Saint Germain (Zlatan Ibrahimovic shirt, 43) 8:27: Messi threatens to terrorise as he cuts him from the left infield, skipping over a challenge from Toure and spreading the ball out to Alves who's emerged on the right flank. The Brazilian swings the cross in but at least two of his teammates are offside as City hold their line excellently. 8:25: PSG have doubled their lead in Germany. The referee spots a bit of shirt pulling that he deems unacceptable and awards PSG a penalty. Ibrahimovic steps up and... well, you know the rest. PSG lead 2-0 before half time. Goal! Bayer Leverkusen 0-2 Paris Saint Germain (Zlatan Ibrahimovic, 39, pen) PENALTY - PSG 8:23: Negredo knocks a header wide into the path of no one in particular but wants a free kick after going down from a challenge with Mascherano but the referee isn't interested. Moments later Kolarov picks up for a yellow for a strong challenge on Busquets. 8:21: Xavi wins another free kick a bit further out after Torue is judged to have pulled him back on the turn. Toure isn't impressed, but the free kick comes to nothing. 8:20: Messi kicks into gear 35 yards from goal and drives at the City defence. Kompany attempts to step across and take possession from the Argentine but is penalised for his trouble. Messi's effort from 30 yards out is blocked by the City wall. 8:18: It's goalless so far and City have had their half chances. Asexpected Barcelona have largely dominated possession but have done little with it so far.