Chelsea return to Stamford Bridge as world champions on Friday evening when they host Bayer Leverkusen in the first of their two preseason friendlies.

In a shocking blow to Chelsea’s defensive unit, defender Levi Colwill suffered an anterior cruciate ligament injury in training earlier this week.

Danish winger Jakob Breum, the 21-year-old who remains of interest to Celtic after a £1.5m offer was rejected this summer, ...