Newport County manager Graham Coughlan feels FA Cup fourth round opponents Manchester United have two ‘special’ young players in Alejandro Garnacho and Kobbie Mainoo. Coughlin could be handed the chance to take in their talents first-hand on Sunday afternoon too. Red Devils boss Erik ten Hag handed Alejandro Garnacho and Kobbie Mainoo a starting berth during the comfortable 2-0 win over Wigan Athletic in round three, after all, the teenage duo arguably Manchester United’s stand-out performers on the night. And while Coughlin’s focus is firmly fixed on a giant-killing for the ages – David welco…