Swansea City boss Paul Clement admits he faces a big moment when they meet Chelsea.
Clement first began working for the Blues in 1995 and – across two spells - worked his way up from a role at their centre of excellence, which he combined with his duties as a PE teacher, to become assistant manager under Carlo Ancelotti.
"This is my first time back there, I left in 2011 and keep in touch with a few people at the club who I knew in the senior staff and the academy staff," he told BBC Wales Sport.
"It is a club I have a long association with, I started to work there in 1995 and I had two spells.
"It is going to be a big day for us all, with me included in that as well."
Source: tribalfootball.com