"To concede a corner" means to allow the opposing team in a sport, such as football or soccer, to earn a corner kick by causing the ball to go out of play behind your own goal line. Full definition
You do not need to concede a corner because I have not signed a five - year contract. (justarsenal.com)
I'm sure if you asked any football fans on whether they'd rather concede a corner or a penalty they'd opt for the former every time. (kopleft.com)
Lovren needlessly conceded a corner with a misguided header and from Sigurdsson's delivery Liverpool lost every subsequent challenge in their penalty area. (beyondtheposts.net)