Sinner fired both team members last month, before winning the US Open title to make it two Grand Slam trophies in 2024 following his breakthrough Australian Open triumph.
Sinner parted ways with Ferrara and physiotherapist Giacomo Naldi last year following the investigation into his positive tests for banned substance clostebol.
Sinner plays down split with trainer and physio ahead of Wimbledon
Marin Cilic had never beaten a Top-5 player on grass in his entire career before Thursday.
Novak Djokovic will keep Andre Agassi as his head coach when he returns to action after recovering from an elbow injury which forced him to cut short his season in July, Serbia's former world number one said on Tuesday.
With Sunday's win, the world number one took his Grand Slam tally to 18, just two shy of Roger Federer and Rafael Nadal's men's record of 20.