Liverpool defender Martin Kelly is out for the remainder of the season after suffering a ruptured anterior cruciate ligament.
The versatile 22-year-old suffered the injury in the 93rd minute of Liverpool's 2-1 Anfield defeat to Manchester United, after the England international twisted and collapsed on his knee.
Needless to say, the loss of Kelly, who has emerged as one of the team's brightest young talents and as a key defensive cog in the past few seasons, is devastating for Liverpool.
But somebody will have to step up in his absence. Here are five youngsters who will do their part.