Premier League 2018-19: 3 key battles which could decide Liverpool's clash against Manchester United

#2 Andrew Robertson against Marcus Rashford

Rashford is United's in-form player at the moment.

Robertson played for Hull City in the Premier League before signing for Liverpool in 2017 for an undisclosed fee. The Scottish international impressed during his three seasons with the Tigers, forcing the Liverpool boss to acquire his services at the Anfield.

The Reds had an issue with the left back position before his arrival, with Moreno not able to earn the manager's trust. However, Robertson has flourished in the Liverpool jersey, and has been a revelation for Klopp's side ever since his arrival from Hull.

He is defensively reliable and can join forces in attack as well. But the most impressive part of his game is the link up play with Sadio Mane on the left flank. Robertson can run throughout the 90 minutes without breaking a sweat.

Klopp would be wary of the threat that Marcus Rashford poses. The 21-year-old has been United's best player in the last few games, and would be the key to unlocking Liverpool's defense.

Robertson likes to move forward, but he cannot let Rashford dribble away at any instance.