#2: Erling-Braut Haaland (RB Salzburg): 8 goals and 1 assist
The 19-year-old Norwegian became one of only nine players to score a hat-trick on his Champions League debut when he scored thrice in Salzburg's 6-2 home win over Genk. In the process, Erling Braut Haaland became the third-youngest player and one of only 4 teenagers to score a Champions League hat-trick.
Haaland scored a goal in Salzburg's 3-4 loss at Liverpool, netted twice in his team's 3-2 home defeat to Napoli, and also scored in the 1-1 draw at the Italian side to become one of only 4 players to score in each of their four games in the competition.
When the teenage substitute came on and scored in his side's 4-2 away win at Genk on Matchday 5, he became the first teenager to score in each of his first 5 games in the Champions League, and only the third player to do so, Alessandro Del Piero and Diego Costa being the others.
Haaland now has the most goals after his first 5 games in the Champions League, Diego Costa had 7 and Del Piero had 5 after their first 5 games in the competition.
The Norwegian teenager will become the first player to score in each of his first 6 games in the Champions League if he scores on Matchday 6, which would also equal Cristiano Ronaldo's record of scoring in every match of a group-stage campaign.
#1: Robert Lewandowski (Bayern Munich): 10 goals
Robert Lewandowski became the first player to score on each of the five Matchdays of this season's Champions League when he scored Bayern's second of the night away at Crvena Zvezda.
The goal opened the floodgates for the prolific Pole, as he netted thrice more in a devastating 14-minute spell to record his first quadruple in the competition since scoring all four goals for Borussia Dortmund in a 4-1 home win over Real Madrid in the first leg of the 2012-13 semi-finals.
Lewandowski, in the process, recorded the fastest quadruple in Champions League history and became the first player after Lionel Messi to record multiple 4-goal hauls in the competition.
The Poland international's 10th of the campaign helped him usurp early pace-setter Haaland and top the goal-scoring charts after 5 Matchdays of this season's competition.