Minnesota have released a video on their official website, showing Ndjock making a jam sandwich, referred to as a jelly sandwich in the United States, in the changing room and accidentally smearing the slippery food on his goalkeeping gloves prior to the match.

http://www.dailymail.co.uk/sport/sportsnews/article-3702308/Was-JAM-SANDWICH-blame-worst-goal-time-Goalkeeper-stars-video-explaining-Bournemouth-error.html