Roma manager Rudi Garcia said he was "mortified" and questioned his players' character after his side crashed out of the Europa League with a 3-0 defeat to Fiorentina on Thursday.
A late sending-off for Adem Ljajic for a second yellow card capped a dispiriting night which saw about a hundred of the club's "ultras" leave the Stadio Olimpico after 30 minutes, by which time Roma had conceded three times in a 13-minute span.
Garcia said Roma would refocus on finishing second in Serie A, where they have fallen 14 points behind leaders Juventus, and only lead third-placed Lazio by a point.
"It was an unexpected defeat," Garcia told Mediaset Premium. "Fiorentina deserve compliments for making the most of our gifts to them, but I am mortified. We had the right desire at the start, but paid a heavy price for individual errors."
"Now we have to salvage the season with second place. If we qualify for the Champions League, it will be an acceptable campaign.
"There are 11 battles remaining in Serie A. It's just the staff and the players. I will not let go for a second, we have to lift our heads and get back up.
"This is what I expect from my players. I spoke to them after the game, telling them that anyone with pride and character will follow me. If anyone is weak, then they do not interest me."
Roma still have not won a game at home after 90 minutes since November, and after Thursday's defeat captain Francesco Totti, goalkeeper Morgan de Sanctis and midfielder Danielle de Rossi led the rest of the team's players over to talk to fans after match.
Totti spoke for a long while with the head of the ultras.
Garcia said the pressure of performing at home seems to have gotten to some of his players.
"I talk about character because some players seem to be afraid of playing at the Olimpico," the manager said. "Our stadium must get back to being a pleasant venue for us.
"In this moment of difficulty that's the message I want to give to the team. The leader must set the example and I remain motivated.
"The season can still end well. It's not possible for this Roma to be real. We need more character."