By Matt Hardy An American multi-sport ownership group has expressed interest in investing in the Hundred – but has concerns over the feasibility of buying a controlling stake in a franchise. The 100-ball competition kicks off its fourth season this afternoon at the Oval in what is set to be the final year of teams being jointly owned by the England and Wales Cricket Board. A guaranteed 49 per cent of each team will be sold to private investors, with up to 100 per cent of each of the eight clubs up for grabs – should counties sell their 51 per cent share. A major multi-sport ownership group bas…