Grant Hall first appeared on everyone's radar during his time at Brighton and Hove Albion. The big English defender was raved about by the Seagulls' management and he attracted a lot of attention from his performances in the reserves and youth teams. He made only one appearance for Brighton before his contract expired and he elected to join Tottenham Hotspur in the summer of 2012.
Hall acted as the captain for Tottenham Hotspur's U-21 Premier League side in the latter stages of the season this year. He was even handed the armband in the final against Manchester United. He partnered consistently with Milos Veljkovic in the center of defense and the two helped the lead a defense that allowed only 37 goals in the first two stages of the league (26 games).
Gall has the prototypical size needed to play center back at the next level, but at 21 years-old he's running out of time to seriously develop his game. Hall is a much more limited central defender than anyone in Tottenham's first team. He sort of plays the enforcer beside his more ball playing teammates. That's certainly not a bad thing as many teams have a need for that type of player, but at Spurs it seems to be incredibly important that the center backs be capable of playing the ball. What he lacks in on the ball skills though Hall makes up for in physicality. His strength and jumping ability make him an excellent asset in defense and in the times I've seen him play he seems like he reads the game pretty well.
At 20, Hall was able to earn a place on the bench for a mid-table Championship team. He's improved a bit since he left Brighton, but I'd say he's still a starter at a top tier League One or bottom to mid-table Championship team. He certainly has the potential to be a Premier League player, but I'm not sure if he'll make it there with Tottenham.