By Sean Walsh Just as Kylian Mbappe was finding his Real Madrid rhythm, he has suffered an injury setback. The world was starting to get used to seeing the iconic Frenchman draped in that famous all-white kit, but he is set to miss the next three weeks after sustaining a leg injury. The reigning European and Spanish champions’ performances have come in for criticism early this season, with Mbappe’s arrival often pointed to as the catalyst for unbalance in Carlo Ancelotti’s starting XI. But without Mbappe \- one of only two natural centre forward options in the first team – how will Madrid line…