Manchester United have no plans to rest on their laurels after picking up four marquee names in the summer transfer window, with Ed Woodward reportedly agreeing a deal for a fifth summer signing in the shape of Sergio Romero.

While the first four signings have cost Manchester United more than a fair change, the signing of Romero will not dent the club in terms of transfer fees, as Romero is set to move on a free transfer.

The Argentina international goalkeeper is reportedly on his way to Manchester to complete a medical, after turning down a move from Roma, according to Sky Italia.

Romero was a free agent this summer after his stint with Sampdoria came to an end, and having revealed Victor Valdes will leave, a goalkeeper was an absolute must for Louis Van Gaal.

Manchester United might very well sign another goalkeeper – probably a bigger name – this summer, depending on how the David De Gea to Real Madrid transfer move pans out, but for now, it looks like Romero, who has worked under Van Gaal before at AZ Alkmaar, is on his way as De Gea's understudy.

It is unlikely that Romero, as good as he might be for Argentina, will be given the No.1 goalkeeper's role if De Gea leaves this summer, so it does look like the 28-year-old will come in knowing he will be the backup, no matter what, next season.

Van Gaal, when asked if Manchester United were done with their summer business, having signed Memphis Depay, Matteo Darmian, Bastian Schweinsteiger and Morgan Schneiderlin, had said he was hoping for a few more signings, and it looks like the United fans haven't had to wait too long to see a fifth arrival.

"No, we are not finished yet, I think," the Manchester United manager said in a press conference in Seattle. "It is what I have said already in many press conferences. We need a balance in the selection and I think we still need to improve at least two positions and we shall do that when it is possible.

"But we shall only buy when the player can give a contribution to our level. And, of course, that is in the eyes of our staff, but I have to have confidence that he can cope with the rhythm of the Premier League."