Martial made his debut at Old Trafford on 12 September as a 65th-minute substitute for Juan Mata, and scored the final goal of a 3–1 win over rivals Liverpool.
Van Gaal called it a "marvellous goal".
Eight days later, in his first Premier League start, he scored twice in an away win, 3–2 at Southampton.
On 23 September, again as a replacement for Mata, Martial scored his fourth goal in four games for his new club, concluding a 3–0 win over Ipswich Town in the third round of the League Cup.
Martial's early impact was praised by former United manager Sir Alex Ferguson, who stated that "he can do anything".

Martial won his first individual honour at United as he picked up the 'PFA Fan's Player of the Month' for September, in which he notched up three goals from two matches.
A few days later, he gained his second trophy at United, as his strike against Liverpool earned him the club's 'Goal of the Month' for September.
He was also named Premier League Player of the Month for September, the third-youngest player to receive the award after Micah Richards and Michael Owen.

On 21 October, in a Champions League group stage match away to CSKA Moscow, Martial gave away a penalty – which David de Gea saved from Roman Eremenko – and later equalised to confirm a 1–1 draw.
He was awarded the Golden Boy as Europe's best under-21 player on 19 December.

Martial was key in a 2–1 win against Everton in the FA Cup semi-final at Wembley Stadium on 23 April 2016: he assisted the first goal by Marouane Fellaini and scored an added-time winner.
He finished the season as the club's top scorer in both the league and overall competitions with 11 goals and 17 goals respectively.
Martial made his debut at Old Trafford on 12 September as a 65th-minute substitute for Juan Mata, and scored the final goal of a 3–1 win over rivals Liverpool. Van Gaal called it a "marvellous goal". Eight days later, in his first Premier League start, he scored twice in an away win, 3–2 at Southampton. On 23 September, again as a replacement for Mata, Martial scored his fourth goal in four games for his new club, concluding a 3–0 win over Ipswich Town in the third round of the League Cup. Martial's early impact was praised by former United manager Sir Alex Ferguson, who stated that "he can do anything".
Martial won his first individual honour at United as he picked up the 'PFA Fan's Player of the Month' for September, in which he notched up three goals from two matches. A few days later, he gained his second trophy at United, as his strike against Liverpool earned him the club's 'Goal of the Month' for September. He was also named Premier League Player of the Month for September, the third-youngest player to receive the award after Micah Richards and Michael Owen.
On 21 October, in a Champions League group stage match away to CSKA Moscow, Martial gave away a penalty – which David de Gea saved from Roman Eremenko – and later equalised to confirm a 1–1 draw. He was awarded the Golden Boy as Europe's best under-21 player on 19 December.
Martial was key in a 2–1 win against Everton in the FA Cup semi-final at Wembley Stadium on 23 April 2016: he assisted the first goal by Marouane Fellaini and scored an added-time winner. He finished the season as the club's top scorer in both the league and overall competitions with 11 goals and 17 goals respectively.
Anthony Martial