Zappacosta joined Chelsea on deadline day.
“I want to thank, with all my heart, the Toro fans, my teammates, the President, executives and all the people I’ve met during this unforgettable experience,” he wrote in an Instagram post.
“I grew up as a man and an athlete at Torino. It was an immense feeling to wear the Granada jersey: grit, heart and passion, I’ll always carry them with me, [including] in this new adventure.
“It’s an honour to be here. London. Chelsea: a great opportunity, a dream. I’m ready for this new journey.
“Far away from Turin, and with Toro always in the heart. Thank you, Davide!”