Manchester United have been linked with a host of Erik ten Hag replacements but one former Premier League midfielder is surprised that Unai Emery has not been mentioned so far. Now, perhaps there are a couple of reasons why the slick-haired Spaniard has managed to stay clear of the sort of speculation that continuously surrounds the likes of Roberto de Zerbi and Thomas Frank. Unai Emery is only halfway through the long-term deal he signed when replacing Steven Gerrard back in 2022. Getting him out of an ambitious and very deep-pocketed Aston Villa side, meanwhile, would be difficult to say the…