Manchester United are set to sign a centre-back this summer – the question is over who the preferred signing may be. One prominently linked target is Everton centre-back Jarrad Branthwaite, with the defender enjoying a breakthrough season as a Premier League regular. Transfer expert Fabrizio Romano insists Manchester United’s interest in the defender is genuine, speaking to The United Stand. But he says there is still no clarity over whether he is actually the club’s number one target for the position. Romano says there are alternatives in play. READ MORE: Manchester United transfer history 20…