This move comes as Manchester United starts to rotate its players ahead of the Africa Cup of Nations, which is scheduled to take place in January.

Lacey is a young attacker who can play on the right wing or as an attacking midfielder, while Fletcher has been involved in several senior match day squads since last October.

Although Lacey has not yet played in a senior match for Manchester United, he could feature in the team's attack as Amorim experiments with his side in the coming weeks.

Manchester United is currently in seventh place in the Premier League and could move up to fourth place if they beat Everton by a certain goal margin.

Lacey and Fletcher will hope that Amorim makes changes to the team and gives them the opportunity to make an impact in the first team.