Sporting CP expect Manchester United to bid for Bruno Fernandes in the coming 24 hours.
Fernandes informed Sporting on Friday he wished to be sold amid an offer of €60m from Tottenham.
Record says Sporting want €70m to sell and expect a bid from United to arrive imminently.
However, with United dawdling, Sporting have now started alerting European rivals, including Real Madrid, about their plans to sell.
Fernandes' priority remains a move to England - and United - though he also is looking favourably upon the Spurs option.
The midfielder scored 32 goals and produced 18 assists last season.