Talisca, on-loan at Beşiktaş, has recently followed Marcus Rashford on Instagram, something which has excited United fans.
Popular journalist Fırat Günayer revealed this week: "Talisca has signed a preliminary agreement with Manchester United.
"Benfica, however, has not yet agreed with the British. They are meeting other clubs to sell him for more.
"Besiktas are also willing to buy him and sell to another club."