Lewandowski makes history as Bayern stay atop with win in Bundesliga
Polish striker becomes 2nd player to pass 300-goal milestone in Bundesliga after Gerd Muller, who has 365 goals
Bayern Munich trounced Koln 4-0 in the Bundesliga's week 19 game on Saturday.
Robert Lewandowski led Bayern to an away victory with his historic hat-trick at RheinEnergieStadion in Cologne, Germany.
The Polish striker became the second player to pass the 300-goal milestone in Bundesliga history after Gerd Muller, who has 365 Bundesliga goals.
Corentin Tolisso added another goal to Bayern's four-goal triumph over Koln.
In the Bundesliga standings, Bayern Munich lead with 46 points, while Koln is 9th with 28 points.
Dortmund keep on pushing for top
The runners-up Borussia Dortmund grabbed a 5-1 victory against Freiburg on Friday.
The Norwegian star Erling Haaland and the Belgian back Thomas Meunier both scored twice at Signal Iduna Park.
Dortmund's fifth goal came from Mahmoud Dahoud, while Freiburg's only goal was scored by Ermedin Demirovic.
Borussia Dortmund are 2nd with 40 points, while Freiburg are 6th with 30 points in the Bundesliga table.
Borussia Dortmund- Freiburg: 5-1
Koln-Bayern Munich: 0-4
Union Berlin-Hoffenheim: 2-1
Wolfsburg-Hertha Berlin: 0-0
Mainz 05-Bochum: 1-0
Borussia M'gladbach-Bayer 04 Leverkusen: 1-2
FC Augsburg-Eintracht Frankfurt: 1-1
Arminia Bielefeld-Greuther Furth: 2-2