It was against Manchester United.
Dirk Kuyt scored his first ever hat-trick against Manchester United in the 2010/11 season.
manchester united FC
Eric Cantona's first goal for Manchester United came on December 19, 1992, in a 1 - 1 draw against Chelsea - his second coming just a week later, against Sheffield Wednesday, in a game in which Manchester United rescued a point, having been 3 - 0 down at half time.
Chicharitos' first competitive goal for Manchester United came in the Community shield game against Chelsea in August 2010.He did score before that though for United in a pre season friendly in America.
Cristiano Ronaldo made his debut for Manchester United as a 60th minute substitute in a 4 - 0 victory against Bolton Wanderers on August 16, 2003.
The first ever Premier League goal was scored by Brian Deane of Sheffield United in a 2-1 win against Manchester United.
West Bromwich Albion
Pre-season he scored a lobbed goal over the keeper. His first competitive goal for Manchester United was against Chelsea in the Community Shield were he shot against his face and went in from 3 yards.