I mentioned somewhere that I believed that Chelsea "probably" has a former player in every Premier League team. Well, I had a little time to spare...
Arsenal - Havertz, Jorginho, Sterling, Rice
Aston Villa - Barkley, Maatsen
Bournemouth - Kepa
Brentford - Matthew Cox ( keeper)
Brighton - Tariq Lamptey
Chelsea - x
Crystal Palace - Guehi, Chalobah, Nketiah
Everton - Begovic
Fulham - 0
Ipswich - Hutchinson
Leicester City - Michael Golding
Liverpool - Salah
Manchester City - Kovacic, DeBruyne, Ake
Manchester United - Mount
Newcastle United - Livramento, Hall
Nottingham Forest - Hudson, Aina
Southampton - Ugochukwu, Dibling
Tottenham Hotspur - Werner, Solanke
West Ham United - Emerson
Wolverhampton Wanderers - 0
I probably missed a few players but 90 percent of all teams in the league has a former Chelsea player in their squad.