Manchester United boss Erik ten Hag reportedly sent scouts to watch Porto duo Diogo Costa and David Carmo on Friday with the former viewed as a replacement for David de Gea.
It comes little over a month after the United boss ripped into De Gea after his side's humiliating four-goal loss at Brentford, describing the Spaniard’s decision-making as "naive" and a key reason behind the embarrassing collapse. De Gea, 31, has retained his place in the starting line-up but it is understood Ten Hag is keen on signing a long-term replacement next summer.
De Gea is out of contract at United next summer while the futures of Dean Henderson – whose loan spell at Nottingham Forest expires next year – and Martin Dubravka – who joined United on a season-long loan deal from Newcastle this summer – also remain unclear.
