Ten-man Southampton lifted the Premier League U21 Cup , but they needed extra time , and a brilliant winner , to see off a stubborn Blackburn side . The game was settled shortly before the break in the additional half hour , when Sam Gallagher unleashed a wonder-strike from long-range , after the two-legged tie had ended 1-1 after 180 minutes . Gallagher , who made 18 Premier League appearances for the club last season , but has not been in the first team this time around , smashed a left-footed shot into the bottom corner from 25 yards , giving Blackburn keeper David Raya no chance , after cutting in from the right wing and playing a one-two with Josh Sims . Southampton celebrate after winning the U21 Premier League Cup at St Mary 's on Monday night . Sam Gallagher celebrates after his stunning strike won the game for Southampton against Blackburn . The Saints players mob goalscorer Ryan Seager after he converted a chance to put them ahead . Earlier , striker Ryan Seager had put Saints ahead with a tidy finish after the ball fell fortuitously to him in the Blackburn box , but the unfortunate Matt Targett turned the ball into his own net to level the game . Targett is the latest of a string of promising left backs to emerge from the club 's academy and get a chance in the first team , but he could do nothing when a deflected cross struck him on the head and trickled past Paulo Gazzaniga . Southampton were reduced to 10 men late on in normal time , when midfielder Harrison Reed , who had been superb in the goalless first leg , was dismissed for a second bookable offence . But the hosts held on for extra time in front of 12,000 fans at St Mary 's , and the home faithful were rewarded with a winning goal of the highest quality . Southampton keeper Paulo Gazzaniga watches as a header loops over his crossbar , as 10-man Saints held on . Home manager Ronald Koeman watched on from the stands as his youth side lifted the trophy .
Southampton beat Blackburn in final of Premier League U21 Cup . Sam Gallagher netted long-range strike to win the tie for 10-man Saints . Matt Targett own goal had levelled up Ryan Seager opener in normal time . Over 12,000 fans turned up to watch Saints win the cup at St Mary 's .