"He is a young player, still time to learn, still time to improve, still time to develop, and it's also his personality".
Jesse Lingard opened the scoring for United in the first-half, but his simple finish owed everything to Martial's outstanding assist. "It's just a question to bring his talent more in a consistent way".
On the stroke of half-time, Martial's quick feet saw him leave both Daniel Carvajal and Luka Modric for dead, before squaring the ball across the six-yard box for Lingard to tap home.
Just 16 days before their UEFA Super Cup meeting in Macedonia, the sides met at Levi's Stadium, home of the San Francisco 49ers, in the International Champions Cup.
They flew out of California straight after the game to Washington DC, where they will spend the next three days before the trip home.
Mourinho said: "We were based in Los Angeles for 15 days, which was fantastic".
He added: "We go into every competition looking to win it and it's no different again this year". "It's fantastic to always be in the same hotel, same training ground".
Bale was spotted speaking with Romelu Lukaku shortly after the match but the 28-year-old says he was merely wishing the striker good luck following his reported £75million move to United from Everton.
Prior to the game, Mourinho said it would be "mission impossible" to try and sign Gareth Bale from Real Madrid, so he had not even tried.
Jose Mourinho stuck with the South American for the Europa League final as Manchester United eased to a 2-0 win against Dutch giants Ajax in Stockholm.
Answer: I haven't said anything. I'm really happy with our pre-season.