Jasper Cillessen was on the receiving end of a horrific-looking boot to the face during Ajax's game against ADO Den Haag over the weekend, which left him unconscious on the floor.
The Dutch goalkeeper rushed out to collect a ball in his area only to get a kick to the face as forward Ruben Schaken challenged for the ball.
Cillessen, who was heavily linked with Manchester United over the summer as a replacement for David de Gea, was out cold, before coming to while being treated by the Ajax medical staff.
The 26-year-old 'keeper suffered a cut lip and a bang to the head, but was surprisingly declared fit and able to carry on for the remainder of the match. Schaken received a booking for his challenge.
Cillessen appeared groggy for some time after the challenge but doesn't appear to have suffered any long-term problems, and is in line to feature for Ajax against Vitesse Arnhem this weekend.
You can check out the video of the collision below. Ajax went on to win the Eredivisie game 1-0 thanks to an Amin Younes goal in the 21st minute, to solidify the Amsterdam club's position at the top of the table.
Cillessen is unlikely to be on the move to Manchester United, either this winter or over the summer, after Real Madrid's transfer ban put paid to their chances of landing De Gea, thus opening up a spot for the Dutchman at Old Trafford.
The Spanish giants are set to appeal the ban and are able to complete transfers in the current window, however De Gea signed a new contract after his move to Madrid collapsed in the summer.