The agent of Real Madrid goalkeeper Iker Casillas has confirmed his client has an offer to join FC Porto this summer.
Casillas' future at Real is in doubt with the club thought to be interested in acquiring Manchester United goalkeeper David De Gea this summer.
The 34-year-old Casillas is under contract with Real for another two seasons but has been the subject of transfer speculation in recent months.
"An offer from FC Porto exists and Casillas is enthusiastic with that possibility," Casillas' agent Carlo Cutropia said to Spanish sports newspaper Marca.
"Now we have to wait to see what Real Madrid say."
According to reports in Spain, FC Porto are willing to offer Casillas a two-year deal with an optional third year.
Real would reportedly allow Casillas to leave as a free agent in order to compensate for the player's high wages.
The Real and Spain captain has endured two difficult campaigns with Los Blancos.
Casillas lost his starting place under former Real coach Jose Mourinho and also struggled at last year's World Cup, where Spain exited at the first round.
Real goalkeeper Keylor Navas, who joined the club last summer, made a handful of starts earlier in the 2014-15 campaign for the Spanish club, but Casillas regained his spot in the first XI.
FC Porto are coached by former Spain and Real goalkeeper Julen Lopetegui and have six Spanish players in their squad.
The Portuguese giants finished runners-up to Benfica in the Primeira Liga and will play in next season's Champions League.
Source: PA
