By Nathan Ridley The brilliant Bruno Fernandes stepped up to spare Erik ten Hag’s blushes as Manchester United came from behind on two occasions to beat Premier League bottom dwellers Sheffield United 4-2. The relegation-threatened visitors took a surprise lead on 35 minutes when wing-back Jayden Bogle capitalised on a howler from Andre Onana, giving the Blades hope of causing an upset, as they did at Old Trafford in 2021. But just like in that famous 2-1 win during Chris Wilder’s first stint, one of their own levelled the scores. Harry Maguire scored for the second game in a row, once again s…