Yes, it does!
It says in the last paragraph before the personal profiles...
"We are proud to be able to list the following players as having signed their first professional contracts at our football club, all of whom have put pen to paper on a three year deal."
It wouldn't be from December 2010, it would be from his 17th birthday. 12th July 2012 to 30th June 2015. It was a pre-contract he signed, he can't easily get out of that.