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City may be top of the league and unbeaten, but they have so far kept just three cleans heats from their 16 games on the league and in Europe so far this season.
Those shutouts—which all came at home—were against Swansea City, Sunderland and Aston Villa. The latter of those two have scored just 10 league goals so far this term, so keeping them out is hardly a ringing endorsement.
They are, however, one of the highest scorers in the Premier League, with only title rivals Manchester United scoring more than their 25 league goals thus far.
Scoring goals is something Real know all about. Their 5-1 defeat of Athletic Bilbao at the weekend means they have scored 16 goals in their last four games in La Liga, while Ronaldo was the top scorer in the Champions League going into this round of fixtures with five to his name.
With City needing to go all out for the win, this game seems destined to be another high-scoring affair just like their first meeting at the Bernabeu.
Ultimately, City's defensive frailties could cost them once again, especially if Real can exploit their opponent's much-documented weakness at set pieces.