Roma boss Rudi Garcia says he was baffled by his dismissal during Monday night's 0-0 draw with Cagliari at the Stadio Olimpico.
The French coach was sent to the stands in the 73rd minute of the game in the Italian capital after a heated conversation with match official Domenico Celio but insisted afterward that he was not sure what he had done wrong.
"It was the referee's decision. I don't want to speak about," Garcia told Sky Sport Italia. "But after the game I went to talk to the referee to understand why I had been sent off. He told me that I had blown up. Maybe I live the game too much!"
Garcia did admit he had been frustrated by his side's failure to turn its dominance into goals, as the Giallorossi failed to reclaim top spot in Serie A from Juventus by being held to a draw for the third consecutive game.
However, despite the setback, the ex-Lille boss insists Roma still has every reason to be feeling upbeat, particularly as third-placed Napoli was beaten at home by Parma on Saturday.
"This 0-0 is a random result. We played a great first half. It was a shame we didn't manage to go ahead," he said. "One important thing is that when we do not win, at least we do not lose. We didn't manage to score a goal but the man of the match was [Cagliar goalkeeper Vlada] Avramov.
"Our problem is that some players are in different physical condition from the others. But the glass is still half full. We have earned a point on third place, and we will do everything to return to the summit."
Roma, which now sits one point behind Juventus, returns to action against Atalanta in Bergamo next weekend.