Claudio Ranieri has resigned as Roma coach after his side squandered a 3-0 lead to lose 4-3 at Genoa on Sunday.
It was the club's fourth defeat in a row and after that Ranieri told Italian news agency Ansa he had decided to step down.
"After the final whistle of a vibrant game I went into the changing rooms to thank the team for their performance and I decided to hand in my resignation," he said.
"I've always thought about the good of Roma, both the club and the team.
"Today we began with the desire to fight for the victory for all those who love this shirt and this city.
"Every minute of my day is dedicated to Roma and I've always said that for me a defeat is especially painful.
"But seeing my lads fighting to the end and losing shook me to the core.
"I want to thank all the fans and the president (Rosella) Sensi. Together, despite the difficulties, we did a great job last year and this year.
"I am and always will be a man of the pitch and after a game such as today's I believe it's right to give a signal for the love of these colours and I hope that my decision will help spur on the team.
After Ranieri's announcement, Sensi said the club would make a decision on the coaching situation on Monday.
"We will act on what he's said," she said, apparently perplexed by the news.
"We won't do anything tonight, we will decide something following a meeting tomorrow morning at which I, the directors and players will be present."