"With my Chelsea hat on, 13 years as a player there, you have a feeling for it and it's not nice, it's not easy".
Cesar Azpilicueta has captained the side in Cahill's absence but it is said that the Spaniard does not assume control of the team in the same manner as previous senior figures at the club such as John Terry, Frank Lampard or Didier Drogba. "But let's not forget they were up against a great Manchester City team - and I also had some good times there as a player".
The Daily Mirror, meanwhile, say Sarri is under scrutiny at Chelsea for his handling of Callum Hudson-Odoi.
"Bookmakers are not always right for starters, so I wouldn't get excited about that".
"It's certainly a club I respect and a manager that I respect so it wouldn't make me smile or anything different because my job is here", the former England global told British media.
"My job is here and I'm working very hard".
Derby sit seventh in the table ahead of Wednesday's trip to bottom club Ipswich, while the Rams face Brighton and Hove Albion in the FA Cup fifth round on Saturday.