Jesse Lingard has been one of United’s academy successes in recent years, having integrated himself firmly in the first team squad and established himself as an important member.
Having been on loan several times in the past few years - to clubs such as Leicester City, Brighton and more recently Derby County - he has underwent a meteoric rise in the past year after being given a chance under Louis Van Gaal, and scored a memorable volley during extra-time against Crystal Palace in the Fa-Cup final last season.
He then further his credentials, scoring after an impressive solo run against Leicester in the Community shield this season.
His hard work ultimately paid off after being selected for the England squad by Gareth Southgate - his former England U21 manager - and made his debut for the senior team, in their 2-0 win against Malta.
Speaking for ITV, United legend Ryan Giggs spoke about how the young winger was a nightmare to train - but for all the right reasons.
Whilst studying his A license in coaching, Giggs was tasked to studying the number 10 position - the position Lingard was training in.
He said on ITV, per the Mirror: "He can play a number of positions. He'll give you energy, he'll score goals, he's a team player, but now at 23, he's got to kick on.
"I coached him when he was 10, and my subject for my A license was coaching a number 10. It was a nightmare because he did everything right.”
Lingard has featured in the league on three occasions this season in the number 10 role - most recently in their 1-1 draw at Stoke - after concerns that Mourinho might no opt for the 23-year-old winger.
His pace and ability to run in-behind defenders have been crucial for United so far this season, but with the return of Martial and Mkhitaryan, there are a lot of options for Mourinho in that position this season.