According to The Guardian, defender Antonio Rüdiger and goalkeeper Kepa Arrizabalaga clashed during Chelsea’s training session.
After a scuffle with the Spaniard during a game episode, the German was sent off early. The players started shoving each other and were separated by their teammates.
Rüdiger later apologized to Kepa and Blues manager Thomas Tuchel.
Chelsea fell to West Bromwich Albion (2-5) at home on Saturday, their first loss under Tuchel.
At the moment, Rüdiger and Kepa are on the bench.