Second-place Manchester United grabbed a 1-0 win over Brighton after a midweek loss to Basel in the Champions League.
Young's top displays of late saw him recalled to the worldwide senior team and the player does not look like he'll be stopping anytime soon.
With eight points separating them from the team on top, the Old Trafford outfit will not be rooting for a victory but indeed a triumph with a great margin to separate them from the opposition, in the hopes of bettering the gap between them and Manchester City.
The severity of the injury is unknown, but there appeared to be little reason to take any chances with the midfielder as a first-half double by Ashley Young put United up early against Watford, with Anthony Martial adding a third before the half.
No punishment from the FA for Romelu Lukaku following the "incident" during the Brighton game.
Defenders Eric Bailly and Phil Jones are out for United.
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Marco Silva's side are coming off the back of confidence-boosting back-to-back wins over West Ham United and Newcastle United as they gear up to face a United side they beat 3-1 at Vicarage Road last season.
They're one of the worst defensive teams in the league and haven't shown much of an inclination or ability to stop teams. "They have improved a lot from last season too".
Nathaniel Chalobah, Craig Cathcart and Isaac Success are all still out with long-term injuries for Silva, who has been the subject of interest from Everton of late, but the Portuguese manager has no fresh worries as United prepare to visit.
Drawing one back, the home side went looking for more and managed a second after 84 minutes. Only 10 players have scored more goals than this in their opening 200 appearances in the competition, with Alan Shearer (145) leading the way.
England global Young netted twice in six first-half minutes at a freezing Vicarage Road on Tuesday, with Anthony Martial and Jesse Lingard also on target.