Jonas Olsson's deflected effort saw Albion win in consecutive seasons at Old Trafford for the first time in more than 50 years.
Chris Brunt's free kick cannoned off Olsson and in the top corner to earn a victory that moved Albion on to 40 points.
Baggies boss Tony Pulis made two changes to the Liverpool stalemate with Olsson and Youssof Mulumbu recalled; but who caught your eye?
Brunt won the Liverpool with 31% of the votes.
Vote for your Albion Man of the Match here.