The 24 - year - old moved to Stamford Bridge in 2013 , with lots of hype around his signature , but after just four appearances he was seriously injured .
The 24 - year - old still has n't made a mark at the club three years later .
The 24 - year - old moved to Stamford Bridge in 2013 , with lots of hype around his signature , but after just four appearances he was seriously injured and still has n't made a mark at the club three years later .