With Roma 1-0 in the Scudetto, the Italian club was looking to wrap up their Europa League campaign and earn the final spot in next season’s Champions League group stages.
They are now facing Lazio, a team who are in a group that is currently a point above the relegation zone.
The Rossoneri are coming off a 2-1 win over Udinese on Monday, and have just one victory from their last nine matches.
With the score tied 1-1, Rossonerio were hoping to get a goal or two from the opening 45 minutes, but that did not happen.
Roma were forced to settle for a 1-2 win after an extra-time penalty shootout penalty that went begging.
Rialto head coach Alessandro Di Stefano spoke to the media after the match and confirmed that Rietzo were not at fault, and that they were in fact not guilty of conceding an extra time penalty.
“It is the responsibility of the referee and the game that was taken away from us, not the referee,” he said.
“The referee did not give a clear indication.
I am convinced that we did not concede an extra minute.
It was a simple game.”
Di Stefana, who also spoke to reporters, claimed that his side were not to blame for the result, as he did not have the ball at his feet.
“We did not know what was happening and we did a very good job defending,” he told Sky Sport Italia.
“They did not get a chance to break the deadlock, but when we needed a goal we were able to create it.
We are disappointed for Lazio because we did the best we could to defend.”
Rietazioni were denied a third consecutive win in the league by a goal from Alessandro Nesta in the 90th minute.
In the last five years, the Rossonerios have never lost to the Giallorossi at home, and the victory is their fourth straight in the group stages of the Champions League.