Best Chelsea signings of the Abramovich era 10

The German international joined the club from Bayern Munich as a free transfer but what he contributed to the club was priceless. One of the best midfielders of his time, Ballack was at the heart of Chelsea’s offense and defense which made him a crucial part of the team. He was quite influential for team and helped them on their way to the first champions league final in 2008. Two FA cups and a premier league title in 2010 is what he managed to win before leaving for Bayer Leverkusen on free.