Arsenal are sweating on the fitness of new signing Riccardo Calafiori after he limped out of Italy’s international squad over the weekend. Calafiori put in a fine performance to help Italy beat France but also picked up an injury which has ruled him out of the game with Israel. The Italian media have reported that the injury is indeed enough to keep Calafiori out of this week’s fixture and for Arsenal fans, there’ll be a worry. The Gunners have already had to sit back and watch fellow new signing Mikel Merino get injured just minutes into his first training session. Losing Calafiori, then, cou…