#2 Aaron Wan-Bissaka
Wan-Bissaka broke through into Crystal Palace's first eleven last season and this term he has established himself as one of the best full-backs in the Premier League, which is a huge achievement for the young man. The young Englishman has been solid a solid right-back for the Eagles.
He is one of the very few full-backs in the world who is a natural defender and it has proved almost impossible to get past him this season. He is a brilliant one-on-one defender and the defensive stats he has produced this season are absolutely unbelievable. The full-back needs to improve his crossing but keeping that aside, he is arguably the best defensive full-back in the world.
The 21-year-old has won 88 per cent of his tackles and 67 per cent of his duels. He has given 2 assists this season and has a crossing accuracy of 22 per cent.
#1 Andy Robertson
Robertson signed for Liverpool in the summer of 2017 and he has been one of the best signings of Jurgen Klopp at Anfield. He has been absolutely brilliant for the Reds this season and he is arguably the best left-back in world football at the moment.
Robertson is the type of full-back who covers every blade of grass in the field and his clever movements off the ball are a joy to behold. The Scottish left-back does the work on both ends of the field and his link-up play with Sadio Mane and James Milner on the left side has also improved from last season.
The 25-year-old has won 64 per cent of his tackles and 55 per cent of his duels this season. He has given a total of 9 assists and has a crossing accuracy of 14 per cent.