Ed Sheeran is pulling out all the stops to help his home team get ready for its Euro 2024 quarterfinal ... performing a private gig for the England soccer squad!!
The four-time Grammy Award winner -- a fellow Englishman -- swung by the Three Lions' training session on Monday ... and lent his vocals to help the team unwind following its hard-fought 2-1 win against Slovakia on Sunday.
Sheeran brought his guitar along for the performance ... and footage shows him strumming along and singing his hit, "The A Team.