Video: Throwback to Roberto Firmino's thumping header against Manchester United

Back in May, Liverpool came up against Manchester United at Old Trafford.

The Reds won the aforementioned Premier League fixture 4-2. During the first half of the clash, Liverpool striker Roberto Firmino scored a thumping header.

As you can see in the footage below, Manchester United goalkeeper Dean Henderson did not stand a chance in terms of saving the Brazil international's attempt.

Firmino struck the ball with great power. Manchester United will welcome Liverpool to Old Trafford come Sunday afternoon.

The top-flight fixture will kick-off at 04:30pm. The video below is property of LFC TV.