It was United's first victory at home in the Premier League this season. Ole Gunnar Solskjaer's men needed a retaken penalty in the second-half to see off the Baggies.
Former Manchester United player, Gary Neville, has blasted the club's players following the Red Devils' Premier League 6-1 defeat to Tottenham Hotspur on Sunday at Old Trafford.
Worst of all, the Red Devils has taken no points from their first two Champions League fixtures this term and they occupy bottom spot in their group. They are also enduring a shocking run of results in the Premier League.
Newcastle United legend, Alan Shearer, has singled out three Manchester United stars for praise following the Red Devils' Premier League 4-1 victory against the Magpies on Saturday night.
A former Manchester United midfielder, Paul Scholes, has named Tottenham Hotspur striker, Harry Kane, as the player the Red Devils should sign instead of Borussia Dortmund winger, Jadon Sancho.
Greenwood scored for Ole Gunnar Solskjaer's men to take his tally to 16 goals in all competitions for United so far this season as they defeated the host at Villa Park.
The 37-year-old Portuguese football star appeared to ignore Neville when he came over to speak to Louis Saha during Sky Sports' live coverage of the Red Devils' 1-0 win over West Ham on Sunday.
Matty Longstaff scored the only goal of the encounter in the second-half to give Newcastle all three points against Solskjaer's men at St James' Park. "They're so inept in possession.
After crashing out of the Champions League, Manchester United will now focus on finishing the ongoing Premier League season among the top four. With five games to go, the Red Devils are currently occupying sixth position with 64 points.
Erik ten Hag's men's biggest defeat this season had come from Manchester City -6:3, and Brentford, 4:0 and the Red Devils maintained their 5th position in the league table.
Jose Mourinho's men head to the game after losing 1-0 against Juventus at Old Trafford last month. The Red Devils, however, defeated Bournemouth 2-1 in the Premier League encounter over the weekend. "I think that it would galvanise us.