The 26-year-old Portuguese star is poised to leave Italy after publicly confirming his intention to end a seven-year spell at the San Siro and test himself in a new league.
With United returning to the Champions League under Michael Carrick, strengthening the left side of the attack is a priority this summer.
Old Trafford chiefs are eager to build on a promising start following their successful pursuit of Atalanta midfielder Ederson.
Leao has never hidden his admiration for English football, having previously noted that he watched United closely because of his boyhood idol, Cristiano Ronaldo.
Milan are believed to value the dynamic forward at around £50 million, a figure well within United’s revamped transfer budget.
However, with the 2026 FIFA World Cup on the horizon, United are set to make a final decision only after the tournament concludes.
Leao’s match-winning quality is undeniable – he has produced 80 goals and 55 assists during his time in Italy – but critics have pointed to inconsistencies in his defensive work rate.
A standout campaign on the world stage with Portugal could drive up his price tag or attract increased competition from European rivals.
The World Cup is the ultimate shop window for Leao to maximise interest before the summer transfer window officially kicks into overdrive.
