Sam Gallagher helped Southampton claim U21 Premier League Cup . The 19-year-old was a key player in the win over Manchester United at Old Trafford on Saturday and has been rewarded with an extended run of games for Saints this season.
Sam Gallagher helped Southampton claim U21 Premier League Cup . Striker scored stunning goal in front of first-team manager Ronald Koeman . Gallagher has n't featured this season after impressing last year .