Manager wants players to cope with things going wrong Other tactics include making dressing room even hotter Mikel Arteta has revealed that he likes to set players challenges, such as delaying their meals before matches and making the dressing room hotter, to ensure they are fully prepared for any eventuality. Arsenal’s flight to Italy for their Champions League opener against Napoli this week was delayed for more than five hours , with Arteta forced to cancel his pre-match press conference aft…