Chelsea manager Antonio Conte has forbidden ketchup, brown sauce and fizzy drinks as he changes the nutritional regime of the first-team squad, club sources have told ESPN FC.
Conte has made improving his players' fitness a top priority as he aims to revive Chelsea's fortunes after last season's struggles.
The Italian implemented a programme of double training sessions with a heavy tactical focus immediately after his arrival following Euro 2016.
And he has adopted a similarly uncompromising approach to diet, instructing that all food items that do not have any nutritional benefit for elite footballers are removed from the canteen at the Cobham training ground.