Liverpool had been on a superb winning streak, until tonight.
English newspapers had linked Sanchez with a move to Pep Guardiola’s side in exchange for England forward Raheem Sterling.
The midfielder was pictured at the club’s Carrington Road training complex on Sunday, with media reporting that a deal would be announced on Monday.
The 65-year-old Italian lost his job after a nine-game losing streak that left the club hanging one point above the relegation zone.
In November, manager Jose Mourinho said United planned to extend his initial one-season deal by another year.
ManU moved up to fifth in the Premier League after the 3-1 victory against Middlesbrough who have still not won a league game in 2017.
The visitors produced a superb first half as early goals by Riyad Mahrez and centre back Robert Huth gave them a 2-0 lead.
The result left Arsenal in fifth place with 50 points from 27 matches, five behind fourth-placed Liverpool who are at home to Manchester City on Sunday
Cahill gave Chelsea thier deserved lead, ultimately sealing their 19th win in their last 22 league games.
Wenger rejected the notion he would be tarnishing his legacy if he prolonged his stay.
City, who had won their previous four league games, were bereft of ideas and attacking threat in a dismal first half.
The charge followed an incident just before halftime in Saturday’s 1-1 Premier League draw against Bournemouth at Old Trafford.
Manchester United remained sixth in the Premier League after being held to a 1-1 draw by Bournemouth on Saturday.
For Sunderland, though, things look bleak as they have now won just one of their last nine league games.
After guiding Leicester to one of the most unlikely title victories last year, Ranieri was fired with the Foxes mired in a relegation battle.
They are 11 points ahead of Manchester City who have 13 games left and while Italian Conte is too cagey to start preparing the Prosecco yet.
The Italian was fired on Thursday with Leicester one place and one point above the relegation zone.
Sutton are 17th in the National League but Wenger said his team would need to overcome a number of obstacles to progress.
