Chelsea head coach Enzo Maresca said Liam Delap's red card against Wolves was "very stupid" and "embarrassing".
Newcastle remain on course to retain the Carabao Cup after a 2-0 home win over Tottenham moved them into the quarter-finals.
Jack Butland heroically denied Jamie McGrath from the penalty spot in the 87th minute to see Rangers over the line at Hibernian and secure back-to-back wins for the first time this season.
Highlights of the fourth-round Carabao Cup match between Wolves and Chelsea.
The top stories and transfer rumours from Thursday's newspapers...
"There may be high-profile managers who would look how vicious that attack was on Brendan Rodgers, and think twice about maybe coming to Celtic."
Chelsea hung on for a dramatic 4-3 win in an action-packed Carabao Cup tie against Wolves at Molineux.
Martin O'Neill made the perfect return to Celtic as he led them to a much-needed 4-0 victory against Falkirk in the wake of Brendan Rodgers' shock departure.
Carabao Cup holders Newcastle will host Fulham in the quarter-finals, while Arsenal will host fellow Londoners Crystal Palace.
Omar Marmoush's powerful late drive ensured Man City progressed to the Carabao Cup quarter-finals after having to come from behind to eventually beat Championship Swansea 3-1 in south Wales.

Sky Sports