The Portuguese international started the new season with Manchester United, with the team struggling to get their feet.
They have managed only one win in their first three Premier League games of the season, with the victory coming against Burnley.
However, despite his team's struggles, the defender was called up to the Portuguese national team for the FIFA World Cup qualifying game.
Dalot returns to Man United
Manchester United right-back Diogo Dalot has been released from the national squad, the local federation announced on Thursday, as reported by Sportal.
The Portuguese defender experienced muscle discomfort and after consultations with the national team's medical staff, the decision was made for him to return to his club.
Portugal's head coach, Roberto Martinez, has called up Lazio defender Nuno Tavares to replace Dalot for the upcoming matches against Armenia and Hungary.
Dalot will head back to Manchester for further medical examinations to determine the course of his recovery.
The Red Devils face two tough Premier League encounters against Manchester City and Chelsea, and the club's staff will be hoping Dalot is fit for those fixtures.