Ever since its "debut" in January 2003, the January transfer window has been a chance for clubs to find that ever-elusive 'missing piece' that they need to stage a title charge -- or stay out of the relegation zone. Here are 25 of the biggest January transfers in the history of English Premier League. It's hard to believe that the biggest deal of the inaugural January transfer window was for �9 million. That is how much Newcastle paid for defender Jonathan Woodgate. Woodgate excelled at St. James' Park but less than two years later he was sold to Real Madrid for �13.4 million.