Watch FC Porto vs Arsenal Live Streaming
Watch FC Porto vs Arsenal Live Streaming"In the last 15 minutes on Saturday, we shot too many balls in the air. We must continue to play on the pitch."
Mancini is bound to make changes, which include Patrick Vieira's return to central midfield.
Adam Johnson also appears a certain starter after he was cup-tied for Saturday's game.
Johnson's man-of-the-match performance against Bolton last week would probably have guaranteed him selection anyway but with Martin Petrov and Shaun Wright-Phillips both doubtful, the former Middlesbrough man seems destined to occupy a left-sided berth.
Mancini did raise some hope that Craig Bellamy might be available but as he previously ruled the Welshman out with a knee injury, not too much optimism can be generated.
So, if both Bellamy and another of Saturday's walking wounded, midfielder Stephen Ireland, are absent, injury-prone Roque Santa Cruz might be handed his first start since lasting just four minutes of his previous one, at Everton last month.
