MANCHESTER, England :Manchester United opened the doors on Friday to their 50 million pound ($67.22 million) redevelopment of their men's first team building at the Carrington Training Complex, a week before the Premier League season kicks off. The year-long project was led by Mancunian architect Norman Foster and his firm Foster + Partners and financed with part of the 300 million pound ($403.47 million) capital injection into the club by United co-owner Jim Ratcliffe last year. Redesigned