The England international has scored 18 times in 29 appearances for the Reds this season, including his superb individual effort against Nottingham Forest on Wednesday evening.
Marcus has found the net 10 times since the World Cup and, since his return from Qatar, you may have noticed that he has a new celebration to mark these moments.
After scoring, Marcus runs over to the corner flag before standing stock-still and pointing his index finger to his temple. It's a gesture that we've seen a lot in the last month and it's starting to be copied by other players too.