The meeting, held at the stadium "Falmer", ended with a score of 3-2 in favor of the home team.
"Brighton" scored first. On the 25th minute Glenn Murray scored. Two minutes later, Shane Duffy doubled the advantage of his team.
Mancunians shortened the gap in the score on the 34th minute thanks to a goal Romel Lukaku, and on the 44th minute, "Brighton" again brought his advantage to two goals, after Pascal Gross realized a penalty.
"Red Devils" were able to play one ball in the last minute offset by the second time. Goal from the penalty spot in his asset recorded Paul Pogba.
In the third round, Manchester United at Old Trafford will receive Tottenham Hotspur, while Brighton will play Liverpool on the road.
Earlier it was reported that the hat-trick Sergio Aguero helped Manchester City to defeat Huddersfield in the second round match of the Premier League.