By Nathan Ridley Paul Merson has slammed Ben White and Kai Havertz for their roles in Arsenal’s crushing 2-0 defeat at home to Aston Villa. The Gunners slipped up in the Premier League title race on Sunday by losing their first top-flight game since New Year’s Eve. Late goals from Villa duo Leon Bailey and Ollie Watkins did the damage against Mikel Arteta’s side, and Merson took aim at two players who had a much worse afternoons. On punditry duty for Sky Sports, the former Arsenal midfielder firstly slammed Havertz for his efforts in the build-up to Bailey’s 84th-minute opener and then critici…