This current batch of Chelsea players are languishing mid-table in the Premier League right now, but you don’t have to rewind too far to remember domestic dominance at Stamford Bridge. The Blues have won five titles since its inception as the Premier League over 30 years ago. Jose Mourinho was in the manager’s dugout for three of them, while Carlo Ancelotti and Antonio Conte share one apiece. So, which Chelsea player is statistically the most successful player of the Premier League era? You can be forgiven if your mind immediately jumps towards club icons such as John Terry, Frank Lampard, Pet…