Manchester United striker Wayne Rooney has insisted that his side will improve over the next few weeks after grinding out a 1-0 win against Tottenham Hotspur.

United had an own goal from Kyle Walker to thank for their opening-day victory at Old Trafford, but Rooney believes that it was only the result that mattered as they got their season off to the perfect start.

The 29-year-old is quoted by BBC Sport as saying: "Today was all about the three points. Pre-season was relatively short compared to previous ones. We're still working. It was a big victory for us today."

Louis van Gaal's men finished in fourth place in the Premier League table last season.