Daniele De Rossi shared his opinion before the Roma-Bayer match.
The teams will meet in the first leg of the Europa League semi-finals today. The German club's unbeaten streak is 46 matches.
"We are excited and happy to spend another unforgettable evening with our fans.
There are worries about how Bayer is playing. They have exciting players, and I respect their coach, Xabi Alonso.
But my Roma believes in success and will fight," said Roma's head coach, Daniele de Rossi.