Aston Villa striker Gabriel Agbonlahor forced Louis Tomlinson to limp out of Stiliyan Petrov's charity match at Parkhead this afternoon.
The encounter, which has seen a Celtic XI go up against a team selected by Petrov, has taken place to raise money for leukaemia treatment after the Bulgarian recently beat the illness.
Among those on show was One Direction singer Tomlinson, who hit the ground after being shoulder-charged by Agbonlahor.
He was helped to his feet, but was substituted soon after and appeared to be in some pain.
Tomlinson recently made the sporting headlines when he signed a contract with Championship side Doncaster Rovers.