He has been more involved in opposition goals this season than goals for Arsenal. (justarsenal.com)
Mertesacker, the biggest player but the weakest aerially, if the ball is not coming straight at him in his natural position he struggle, all the routine straight high balls from opposition goal kicks are easy for him, but let the opposition striker be running behind him then you will see how he struggles, let's crosses come in where he needs to adjust and clear then at an angle, he looks clueless.. (justarsenal.com)
He hardly makes any saves apart from straight balls Many at times this season, it is one shot, one goal for the opposition (justarsenal.com)