Courtois' challenge: He's never kept a clean sheet against Manchester City

Thibaut Courtois has managed 21 clean sheets across all competitions this season and if he adds another one assist Real Madrid's efforts in qualifying for the last eight of the Champions League.

However, this is not going to be an easy task as the Sky Blues are the team against whom he has the worst ratio of clean sheets per game.

The Belgium international has conceded 11 goals in nine games against Manchester City and has had to pick the ball out of the back of his net at least once in each of the matches.

Of those nine encounters, Courtois' worst performance came on April 16, 2016, in a 3-0 defeat at the Stamford Bridge as Sergio Aguero netted a hat-trick and the goalkeeper receiving his marching orders with 12 minutes to go.

In the Champions League, Courtois has mustered three clean sheets in eight games for Real Madrid, five with Atletico Madrid, and another five while at Chelsea. On August 7, Real Madrid will try to turn around the first leg's 2-1 defeat and the 28-year-old will have the chance to chase the dream of winning his first Champions League trophy.

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                                                                                                                               Saif