Paris Saint-Germain’s Leandro Paredes was verbally abused by Dutch referee Bjorn Kuipers during Tuesday’s Champions League semi-final second leg loss to Manchester City, teammate Ander Herrera has claimed.

French champions PSG were left angered by the referee, who sent off PSG’s Angel Di Maria in the 69th minute for an off-the-ball stamp on Fernandinho.

“We talk about respect towards referees,” midfielder Herrera told French multimedia outlet RMC Sport, while revealing that the official had sworn at Paredes. “If we say that, we get a three or four-match ban.”

Herrera’s teammate Marco Verratti said in his post-match interview that he too was abused by the official.

PSG manager Mauricio Pochettino told reporters he believed his players and that European soccer’s governing body Uefa should investigate the incident.