Former Arsenal star Mesut Ozil was a world-class player at his best, but also had critics during his time in North London. Ozil arrived as one of the biggest signings in Arsenal’s history, as a then-club record transfer from Real Madrid, as one of the best players in the world. His first season saw him help Arsene Wenger end a nine-year trophy drought with the FA Cup, and his signing lifted the whole mood around the club. Injuries and criticism followed him for a year before he had his best season in 2015-16, notching up an incredible 19 Premier League assists as Arsenal fell just short of the…