Montreal Impact attacker Dominic Oduro has revealed how he was the subject of racist chants in Costa Rica on Tuesday.

The MLS club took on Alajuelense in the CONCACAF Champions League semi-final second leg at Estadio Alejandro Morera Soto which ended in a 4-2 win to the home team but saw the Impact progress to the final by virtue of the away-goal rule after a 4-4 aggregate.

A section of the Alajuelense crowd were heard to be using derogatory chants towards winger Oduro before and after the match which the Ghanaian has since brought forward.

"I think I remember Nigel [Reo-Coker] was on the other side, warming up with one of our defenders, Donny [Toia]," Oduro told MLSsoccer.com.

"And they started going with those monkey sounds. Fans always want to intimidate you, but for it to go that far, making those monkey noises, that is wrong. That's going way too far for us to be just permissive about this stuff."

Oduro added: "It went to a point where it was so bad, even one of their players heard it, and he was trying to restrain me from going to the fans and saying something.

"That shows even he heard it. Again, I hope the [Champions League] listens to that, because it's not good for the team and for soccer, in general."

The Impact will meet Mexican side Club America in the CCL final with the first leg to take place at Estadio Azteca in Mexico City on April 22 and the return bout to be held at the Olympic Stadium in Montreal on April 29.