Former Liverpool, Real Madrid and Everton boss, Rafa Benitez has fired a warning to latest Chelsea manager, Graham Potter.
Chelsea sacked Thomas Tuchel a couple of weeks ago and announced Potter as their new head coach.
But the former Brighton boss could not win his first match which was in the Champions League, playing out a 1-1 draw against Red Bull Salzburg.
Benitez, who was interim boss at Chelsea in 2012-13, was quizzed about Potter.
He told Sky Sports: