Usain Bolt's verdict on Manchester United: Louis van Gaal needs to "work on defence"
VIDEO: World's fastest man gives his verdict on Swansea defeat
The world's fastest ever man has given his verdict on Manchester United.
Usain Bolt, an avid supporter of the club, has said Louis van Gaal needs to work on the side's defence.
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United suffered a shock defeat at home to Swansea City on Saturday in Louis van Gaal's first match as a Premier League manager.
The Dutch coach was forced to hand a debut to 20-year-old Tyler Blackett, who was partially to blame for Gylfi Sigurdsson's winner.
Van Gaal also abandoned the 3-5-2 formation that took the Netherlands to the World Cup semi-final at half-time, in an attempt to invigorate his stuttering side.