Angel di Maria has agreed to join Manchester United's pre-season tour of the United States even though he appears to be edging closer to a move to Paris St Germain.

PSG are interested in signing Di Maria, who endured a difficult first season at Old Trafford following his £59.7 million ($92.5 million) move from Real Madrid.

United have refused to comment on reports they have agreed a fee of €65 million (£46 million, $71.3 million) with the French champions for the Argentinian, who has struggled to settle in the Manchester area following an attempted burglary at his Cheshire home in February.

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Louis van Gaal gave Di Maria, Marcos Rojo and Javier Hernandez an extended period of leave this summer following their international commitments at the Copa America and Gold Cup.

But they were all due to report for duty on July 25 and that still remains the case despite speculation a deal for Di Maria is almost done.

"I expect them (Di Maria, Rojo and Hernandez) here tomorrow," the United manager said at a press conference in San Jose on Friday.

"We have communicated (with them) and they have responded to that."

Van Gaal refused to discuss whether Di Maria is leaving for PSG.

"I am not answering questions about transfers or the process in transfers," the Dutchman said.

Di Maria will not be considered for United's third pre-season game, which is against Barcelona at the Levi's Stadium in Santa Clara on Saturday.

"For the (Barca) game he cannot play because we have to build him up," Van Gaal said.

"When you come out of your holidays you can't play immediately so that is out of the question."

Interestingly, United's fourth and final game of the tour is against PSG in Chicago on Thursday morning.