Manchester United manager Louis van Gaal says Southampton were lucky to leave Old Trafford with a 1-0 victory.

The home team failed to have a single shot on target as their 10-match unbeaten run ended when Dusan Tadic tapped in calmly from 12 yards.

Van Gaal has collected 37 points from 21 Premier League fixtures - the same amount David Moyes accumulated at Old Trafford at the equivalent stage last season.