Bayern Munich obliterate Hamburg 8-0, courtesy Robert Lewandowski hat-trick — Watch

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Berlin: Bayern Munich forward Robert Lewandowski scored a hat-trick as the Bundesliga leaders obliterated Hamburg SV 8-0 on Saturday to stay five points clear at the top and equal their opponents` heaviest league defeat.

The Pole, who has netted 19 times in the Bundesliga this season, struck twice in the first half and slotted in his third goal in the 54th minute after Arturo Vidal had put the hosts ahead in the 17th.

Strugglers Hamburg had been confident they would not be the punch bags of past matches between the sides, having also lost 8-0 in Munich two years ago, and they had been unbeaten in their last three games.

But they looked frozen as they conceded another goal by David Alaba in the 56th and substitute Kingsley Coman scored twice more within five minutes a little later.

Arjen Robben struck on the break as Hamburg capitulated to equal their heaviest Bundesliga defeat.

RB Leipzig stayed five points off the pace after beating Cologne 3-1 to climb up to 48 points.

Pierre-Emerick Aubameyang ending his goal drought after 471 minutes to score twice as Borussia Dortmund tightened their hold on third place with a 3-0 victory at Freiburg.

Dortmund are on 40 points, three ahead of Hoffenheim who play Schalke 04 on Sunday.