Angel di Maria failed to board his flight to the United States and therefore did not join Manchester United's pre-season tour party on Saturday, Louis van Gaal has revealed.
Di Maria, subject of serious interest from Paris St Germain, was due to meet up with his United team-mates in San Jose on Saturday.
But the British record signing did not catch his plane to California, which will fuel speculation his move to PSG is moving closer.
"No," the United manager said when asked if Di Maria had flown to San Jose. "I have heard he is not on the plane. I cannot say anything. He was not on the plane."
United have refused to comment on reports in France that they have agreed to sell the Argentina winger to the Parisian club £46.5million.
But the unsettled 27-year-old was not in the US for Saturday's 3-1 win over Barcelona in Santa Clara and neither was Marcos Rojo, who had been also been given extended leave following the Copa America.
The only person who reported for duty who was supposed to was Javier Hernandez, who was playing for Mexico in the Gold Cup.
"Marcos Rojo was also not on the plane. He had passport issues," Van Gaal added.
"That I do know. But for Di Maria I do not know why. Javier Hernandez is here."
United maintained their 100 per cent tour record thanks to goals from Wayne Rooney, Jesse Lingard and Adnan Januzaj at the Levi's Stadium, home of the San Francisco 49ers on Saturday night.
Matteo Darmian, Luke Shaw and Ashley Young performed well in the morale-boosting victory against the European champions in California.
David de Gea also put in a strong performance on his first outing of the summer.
The Spaniard, who is wanted by Real Madrid, denied Sergi Roberto a goal when the Barcelona midfielder was clean through in the first half, and grew in confidence from there on.
After the final whistle, Van Gaal heaped praise on his goalkeeper, who has been out with a back injury, and reiterated that he wants him to stay at Old Trafford for next season despite Madrid's interest.
"Of course I do hope that David de Gea shall stay but in this world of football you never know," Van Gaal said.
"In spite of his injury he doesn't train for one week, he can show his quality already in this game. He has showed his quality. The first chance was for Barcelona. When you stop the first chance, then you can score the first goal, which we did. That is always the difference in the game."
Van Gaal said Barca could not deal with the danger posed by Rooney and Memphis Depay, who played in the number 10 role just behind the skipper.
"I think they are always a threat," Van Gaal said. "That is very important. Barcelona could not cope with the threat of Depay and Rooney."