Louis van Gaal has revealed that he is still in the market for the "surprise striker" he had talked about in a previous press conference, but the player is yet to be linked with them this summer.

The Red Devils have been linked with a move for Thomas Muller and German publication Sport1 suggests that they are willing to make a £70m ($108m) bid in the remainder of the transfer window.

"A surprise? Yes. He's in the process. It's not the striker that the media has written [about]. But you have to wait and see. The transfer period is open until September 2," Van Gaal addressed a press conference, as quoted by the Daily Express.

The Dutchman also talked about Sergio Ramos, but refused to divulge details about a possible transfer and urged fans to be patient with the process.

"I cannot talk about these rumours. I have said already it's a process and maybe Mr Ramos is in the process - you never know," he continued.

Meanwhile, The manager revealed that he is very happy with the transfer window thus far as it has given him a better premise going into the start of the coming season, unlike last year when he had to wait until later in the window to add to his squad.

The Red Devils have made four acquisitions so far, in the form of Bastian Schweinsteiger, Morgan Schneiderlin, Matteo Darmian and Memphis Depay and are active in the market for anyone else who can add quality to their squad. Van Gaal revealed that he can now line-up players in their preferred positions as he has two players for each spot in his current squad, something which he struggled to do last season.

"Now for every position I have two players. Normally they play in their own position but nevertheless Paddy McNair had to play right full back in the first tour game and that is not his position. He can do it but it's not his position and that is football because Antonio Valencia was injured," Van Gaal added.

"We have brought Darmian for the second position behind Valencia and now already because of that injury, McNair has to play there.

"We have sold a lot of players - 17 in my period as manager - and we never talk about that," the United manager added.