Tuchel won the Champions League, UEFA Super Cup and Club World Cup during a 20-month spell as Chelsea boss before being let go by Todd Boehly.
Stellini refused to be drawn on Antonio Conteâs explosive post-match comments at Southampton.
Team news Injuries have plagued Chelsea over recent weeks, though Graham Potter could see a number of his stars return to action this weekend. Kai Havertz, Cesar Azpilicueta, Mason Mount, Edouard Mendy, Raheem Sterling, Pierre-Emerick Aubameyang, Wesley Fofana and Reece James are all being assessed ahead of Saturday's game.