And in a further blow for United, the club also confirmed Martinez’s central-defensive partner Raphael Varane is expected to be out for a “few weeks” with a foot injury after being forced off at half-time in the same game.
Martinez fell to the floor unchallenged in the closing stages of the Europa League quarter-final first leg at Old Trafford and was carried off the pitch by Sevilla’s Marcos Acuna and Gonzalo Montiel, two of his Argentina team-mates.
A United statement confirming the news read: “Lisandro Martinez has been ruled out for the remainder of the season after fracturing a metatarsal bone in his foot.
“However, the Argentinian defender is expected to make a full recovery in time to be ready for the start of next season.”
Martinez has been a key part of Erik ten Hag’s side since joining his manager in swapping Ajax for United last summer, going on to play 45 games in all competitions in his debut season.