Video: Usain Bolt says Manchester United need to "work on their defensive problems"
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.
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.
Bolt told reporters in Brazil: "We need a better defence. I think the the problems are defence we need to work on that.
"We don’t have a good defence yet so I think a few more games we’ll better than we were. Our offence should be ok.
"It’s a bad start to the season but that’s how it is sometimes."
Van Gaal appears to have taken Bolt's advice with a £15m move for Argentina defender Marcos Rojo on the table.