Only a goalkeeping howler from Joe Hart in injury time sullied a satisfactory day for City.
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Gow headed wide of the Rangers goal in injury time as the match petered out.
Martin Corry added a late try in injury time on his 250th club appearance.
City were also reduced to 10 men when Kolo Toure was sent off in injury time.
Combe was booked in injury time for dissent after being unhappy with substitute Kyle Lafferty's challenge.
Scott Parker should have equalised in injury time but was denied by Scott Carson at close range.
Freiburg hit a consolation goal in injury time when Stefan Reisinger met a cross from Mohamadou Idrissou.
Captain Berrick Barnes added a penalty and a drop-goal before flanker Scott Higginbotham went over in injury time.
Sulley Muntari put Milan ahead in the San Siro and Robinho sealed a vital victory in injury time.
United struggled overall but got a consolation goal when Michael Carrick shot into the corner in injury time.
The Argentine was on hand again to set up Pedro Rodriguez who scored a fourth in injury time.
"Losing a goal in injury time against Aberdeen at home, you could feel sorry for yourself, " he added.
Niall McGinn hit the crossbar while Slovakia's Erik Jendrisek was also denied by the woodwork in injury time.
Blackburn goalkeeper Brad Friedel had to be alert to palm over Olivier Kapo's close-range header in injury time.
Kilmarnock dominated the second half and Gavin Skelton had an effort cleared off the line in injury time.
And Henry added his second in injury time, lashing home as Saints appealed for a foul on Danny Higginbotham.
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James Coppinger scored the winning goal in injury time at Griffin Park on Saturday, securing promotion to the Championship.
The former Worcester player's third try from close range in injury time secured a bonus point for his side.
Jamie Scowcroft rounded off the rout in injury time when he squeezed home a 20-yard effort to Davison's right.
And the travelling Crawley fans saw their team hit the United bar in injury time through substitute Richard Brodie.
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Cameroon's Patrick Mboma went close with a few headers and in injury time Geremi Fotso Njitap hit the upright.
Norwich's Darren Huckerby was sent off for a dangerous tackle in injury time.
Maidenhead substitute Alex Wall then scored in injury time to claim the win.
Scott Arfield could have put the match beyond the hosts in injury time, but blasted the ball over the bar.
Mendez was yellow-carded in injury time for a professional foul - a deliberate knock-on that killed a promising Exiles move.
But in injury time, Ryan finally settled the contest when he raced into the area and blasted the ball home.
It got even worse in injury time as Riera's shot struck Babel and looped over Myhill to make it six.
The latter match at Goodison Park saw the Toffees hit back to draw 3-3 with two goals in injury time.
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Two goals from Klaas Jan Huntelaar in injury time to snatch a late victory after a performance lacking in inspiration.
Dortmund made the most of the numerical advantage as Lewandoswki bagged his second in injury time to make the game safe.
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