Sporting Lisbon are struggling to reach agreement with Bruma over a new contract.

The Portugal U20 star sacked super agent Pini Zahavi earlier this month in order to commit himself to Sporting. But his demands are proving too rich for Sporting president Bruno de Carvalho, says Record.

De Carvalho says they "won't give into" Bruma's wage demands, which could see him sold after the U20 World Cup.

Chelsea, Manchester United and Manchester City are among European heavyweights to have been linked with Bruma, who has a year to run on his current deal.