Ben Chilwell
The 22-year-old progressed to the Foxes’ first-team from the club’s academy and has made the left-back role his own.
His modern style of attacking and providing the forwards with support from wide has seen him included in Gareth Southgate’s England squad and gain five caps since September.
He only has two assists this season but can clearly be a a threat when bombing forward from defence.
With narrow wingers cutting inside the join Vardy in attack, Saints will have to be wary of overlapping runs from full-backs on both sides of the pitch.