Diego Costa

The Bulgarian football legend Hristo Stoichkov visited the Cobham training ground of the reigning English champion Chelsea on Wednesday.

The former striker of Barcelona and holder of the Ballon d'Or visited the training ground in his capacity as representative of the media.

While Chelsea heads into the close season serene in the knowledge of its Premier League supremacy, the English summer holds weeks of recalibration for the teams seeking to topple the Londoners.

Can Manchester City, the usurped champion and runner-up this season, successfully rejuvenate a starting XI that has barely changed since the 2012 title triumph?

Some Chelsea fans thought manager Jose Mourinho had taken leave of his senses when he decided to bring the ageing Didier Drogba back to the club in the close season.
   
There was a feeling that the 36-year-old Ivorian was well past his best and that returning to Stamford Bridge might tarnish the legacy he left after a dazzling first spell with the Londoners.