Paris Saint-Germain president Nasser Al-Khelaifi has played a significant role in talks over the purchase of Manchester United by a group fronted by Qatari royal Sheikh Jassim. United were put up for sale by their majority owners, the Glazer family, last November and the bidding contest to buy the Premier League club quickly came down to a two-horse race between Sheikh Jassim’s Nine Two Foundation and British billionaire, Sir Jim Ratcliffe. Sheikh Jassim’s bid team initially consulted Al-Khelaifi for advice on United’s valuation as the Glazers indicated they wanted $8billion (£6.4bn)...