Mikel Arteta confirmed Arsenal are reviewing their warm-up procedures after four separate pre-match injuries this season, a frequency he described as 'very unusual' compared to once or twice in his six years at the club.
The most recent case involved Riccardo Calafiori, who was withdrawn before the Wigan game, following earlier incidents with William Saliba at Anfield and Bukayo Saka before the Leeds trip. Arteta admitted the uncertainty has altered his mindset in the final minutes before kick-off.