By Nathan Ridley Erik ten Hag is expected to have Manchester United defenders Harry Maguire and Luke Shaw available for their FA Cup fourth-round clash with Newport County this Sunday. The pair of England internationals were pictured back in training on Tuesday, as United’s players regrouped at Carrington following their mid-season break last week. Centre-back Maguire hasn’t featured since injuring his groin during the Red Devils’ 1-0 defeat at home to Bayern Munich in the Champions League on December 12. Shaw, meanwhile, has missed United’s last four games due to an unspecified issue. The inj…