The Argentinian defender experienced the setback in our Premier League game against Arsenal earlier this month.
Martinez bravely continued playing for the following two games against Brighton & Hove Albion and Bayern Munich.
But it has now been determined that he needs a period on the sidelines for recovery and rehabilitation. Assessment is ongoing to decide next steps.
Everyone at Manchester United sends Lisandro our best wishes and looks forward to him coming back as soon as possible.
Sergio Reguilon will also be absent from this Saturday’s Premier League game against Crystal Palace with a minor injury.