AFC Sudbury Academy graduate and promotion winner Joe Grimwood has signed his first professional contract after sealing a move from Braintree Town to now Vanarama National League rivals Barnet. The 22-year-old ended a six-year spell at Sudbury, including three in the academy, after winning the Pitching In Isthmian League North Division Play-Off Final last May to re-join former Yellows manager Angelo Harrop at Braintree. And after adding back-to-back promotions to his CV, helping The Iron up through the play-offs after a fifth-placed finish in National League South, the centre-back has made the…