Madrid are reportedly preparing a bid of around £100m for the Uruguayan after he enjoyed a prolific season with the Reds.
"A year ago he was very likely to leave Liverpool," Alejandro Balbi told Cadena Ser.
"Now I think it is very difficult because he is an idol, although clubs can offer a lot of money.
"If there is such a big offer from Real Madrid, it is very difficult to say no. Luis Suarez has always had a predisposition for Spain."
Suarez, who scored 31 goals in the Premier League this season, underwent knee surgery last week and is a doubt for the World Cup.