The club has confirmed the sides played two 90 minute matches with rotated squads in an attempt to help with match fitness before both sides restart their season later next week.
United were supposed to play Stoke City earlier this week before their manager, Michael O’Neill, tested positive for COVID-19.
How each fixture played out
The first match saw West Brom defeat United 2-1 in the earlier hours of this afternoon. The result can't be looked into too much considering both sides have yet to confirm or deny which players started.
The formation Ole Gunnar Solskjaer kept throughout both matches is reported to have been a 4-3-3. United have confirmed that some players took part in both games.
The second match between the two sides saw United win 3-1 - Andreas Pereira scored two with another goal from Tahith Chong.
Rashford boost for United
Arguably the best news for United fans is that Marcus Rashford is back in red and claimed he 'loved every minute of it' via his Instagram.
Rashford suffered a lower back injury in the FA Cup third-round replay victory over Wolves.
The 22-year-old was enjoying his most successful season yet at United with 18 goal contributions in his 22 appearances before his injury. But the break caused by the global pandemic has given the English international a chance to recover and could feature in United's first game back away to Tottenham Hotspur.
Rashford enjoyed the reverse fixture of this matchup back in December when he put two past Jose Mourinho's side in a 2-0 win for United.
United's first Premier League fixture is on June 19 at the new Spurs ground and they look to continue where they left off after their last fixture saw them beat rivals, Manchester City.