The Argentina international went down in the second half at the Emirates, adding to a long record of injuries at Manchester United.
Lisandro Martinez was forced off injured during Manchester United’s Premier League match against Arsenal on Sunday.
The Argentina international collapsed shortly after the hour mark at the Emirates, following a late challenge on Eddie Nketiah that earned him a booking from referee Anthony Taylor. He was evaluated briefly on the field, and Harry Maguire was sent out to warm up before replacing him.
United were already without Raphael Varane, who was injured during last weekend’s 3-2 comeback victory over Nottingham Forest at home. Erik ten Hag would be without both of his first-choice centre-backs if he was absent for an extended period of time.
United’s injury list is already growing as the first international break approaches, with Mason Mount and Luke Shaw out for the past two weeks. Rasmus Hojlund, who had been absent for the first three games of the season, made his debut off the bench against Arsenal.
Last season, United were without Varane and Martinez for extended periods due to injuries sustained during the first leg of their Europa League quarter-final match against Sevilla in April. The latter had fractured a metatarsal and would miss the rest of the season.
Ten Hag will use the forthcoming international break to assess any injury concerns, with United’s next game against Brighton & Hove Albion at home on September 16. They will expect to have Martinez returned and available for selection when they face Bayern Munich in their opening Champions League group stage encounter the following Wednesday.