Chelsea’s first-team players and coaching staff are all in self-isolation after winger Callum Hudson-Odoi tested positive for the coronavirus last week.
It was reported that Mount and Rice, both England internationals, were playing a five-a-side game at the Trent Park Football centre near Barnet.
It is understood that Chelsea players have been reminded about the self-isolation protocols and are expected to resume training only when they are out of isolation on March 22 to March 23.