Southampton youngster Jimmy-Jay Morgan continued his fine scoring form after scoring a hat-trick against Birmingham City's youth side.
The 16-year-old has helped the Saints make it two wins out of two in the Premier League Cup so far this term.
Morgan also scored twice in the previous game against Everton, along with netting a brace against Sunderland in Premier League 2.
Dave Horseman's team will now feel they are in a great position to progress to the next stage of the Premier League Cup.
Their 4-0 win, which also saw Kamari Doyle score, reflected their dominance in all departments.