Gary Lineker expressed his delight to "finally" see Jadon Sancho performing for Manchester United.
The former Borussia Dortmund attacker opened the scoring against Southampton as Ralf Rangnick's side caught them on the break before Marcus Rashford laid it on a plate for his England teammate.
It was his first Premier League goal at the Theatre of Dreams, just over a week since he broke his Old Trafford duck in the penalty shootout defeat to Middlesbrough in the FA Cup.