Transfer window: When it was introduced, dates & everything you need to know Unknown 04:12 Goal brings you all you need to know about what has become a key fixture in the calendar of football across the world Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsUEFA Nations League: Manchester United midfielder Romelu Lukaku ruled out of Belgium fixtures due to injuryBundesliga: President Uli Hoeness ramps up pressure on struggling Bayern by suggesting hasty exits for under-performing starsHong Kong Open: Kidambi Srikanth clinches thriller against HS Prannoy; PV Sindhu suffers defeat in second roundPremier League set to introduce VAR from next season after clubs 'agreed in principle' in meetingSushil Kumar, Swapna Barman dropped from TOPS; Arpinder Singh, Avinash Sable included in revised listShubhankar Sharma cards modest 73 at Dubai, but stays favourite to win Rookie of the Year award on European Tour
