Gareth Bale's agent has told ESPN FC that the Real Madrid fans who whistled the Wales international when he was substituted in Saturday's home Clasico defeat to Barcelona are "a disgrace."
Bale returned to the Madrid lineup at the Bernabeu but struggled to make an impact and was targeted when he made way for Marco Asensio soon after the hour.
But agent Jonathan Barnett told ESPN FC that Madrid fans should remember what Bale had done for the club, including his goals in the 2014 and 2018 Champions League final wins.
"The fans are a disgrace," he said. "They will be speaking about him and his goals for years to come."
Saturday's jeers came after a week in which Bale was criticised for appearing to shun attempts by teammates to celebrate his winning goal at Levante.
Marca recently reported that he had been upset by interviews given by teammates Marcelo and Thibaut Courtois in which it was revealed that he does not speak much Spanish in the dressing room and is nicknamed "the golfer" by teammates.
"The press are also a disgrace, but less important," Barnett said.
AS has reported that Madrid president Florentino Perez is planning a big clearout in the summer, with Bale among those who could leave despite being under contract until 2022.
However, Barnett has said his client's relationship with the Madrid hierarchy and coach Santiago Solari remains strong, while the player has stressed that he wants to stay.
Bale has scored 13 goals in 33 games this season, but Solari has recently preferred teenager Vinicius Junior and Lucas Vazquez as starting wingers.
With the Champions League Madrid's only chance of a trophy, Croatia international Modric told a news conference ahead of the second leg at home to Ajax: "Cristiano is a player who any team would miss.
"To find a replacement is almost impossible. The club wanted other players to cover his function, but that is not easy. Cristiano scored 50 goals a season.
"Maybe someone needed to step up. I will not name names but, if not 50, we need 20 goals from two or three players. That is our biggest problem this season.
"In the Copa against Barcelona we had many chances, but when you do not take them you get punished. Cristiano is not here, we cannot be asking for 10 years who will replace him."
Asked about former Madrid manager Jose Mourinho talking about a potential return to the Bernabeu, Modric said: "We do not bother much with rumours -- we focus on ourselves, how to improve.
"In the world of Real Madrid there is always talk of these things. We must focus on the Champions League now, that's all we can do, try and play well and win the game."