Antonio Rudiger, Olivier Giroud and Gianfranco Zola made a surprise appearance during a family's zoom quiz.
Rudiger and Giroud, as well as club legend Zola, gate-crashed their call to speak with Paul and Tony, two brothers who share a special bond.
Paul suffered kidney failure in 2018, and his big brother Tony stepped forward to donate one of his own.
Chelsea FC (at ) u2714 @ChelseaFCTwo Chelsea fans. One incredible story of brotherly love.
Mum sets up family Zoom quiz.