Gary Neville has been left baffled after seeing former Manchester United ace Sergio Reguilon in action for Brentford on Monday night. United’s left back situation has been a nightmare all season. From Tyrell Malacia’s never-ending injury problems to Luke Shaw repeatedly picking up issues since August, United have struggled in that area. United took Sergio Reguilon on loan from Tottenham Hotspur with the option to send him back to North London in January. The Spaniard never really got going at Old Trafford and was sent back to Spurs, who in-turn loaned him to Brentford for the rest of the seaso…
