He was substituted at half-time of Arsenal's 2-0 loss to Tottenham Hotspur in the League Cup quarter-finals last week.
Arsenal have the potential to win the Europa League, midfielder Henrikh Mkhitaryan said after their 3-0 win at Ostersunds in the first leg of their last 32 tie on Thursday.
Sanchez became the first transfer from Arsenal to Manchester United since Robin Van Persie’s transfer to United in 2012.
A recent international press release has revealed the desire of Inter Milan to sign Manchester United's Henrikh Mkhitaryan during the winter transfer market.
Manchester United manager Jose Mourinho talked about a possible departure of several players from his team during the next transfer window.
Manchester United player Henrikh Mkhitaryan is set to return to his former club Borussia Dortmund in the upcoming winter transfer window.
The English Premier League has announced the nominated players for the best player of August award.