A key contest in the Bundesliga title race takes place later on Tuesday when Borussia Dortmund host champions and leaders Bayern Munich.

Bayern are four points clear at the top of the table with seven matches left to play, making this a must-win encounter for Dortmund.

BVB have seen their fortunes boosted since the January arrival of in-demand striker Erling Haaland from Salzburg.

Bayern have a formidable frontman of their own, though, in the shape of former Dortmund star Robert Lewandowski.

Ahead of a huge Klassiker contest, we have used Opta data to review the numbers behind the two strikers' prolific 2019-20 campaigns so far.


GOALSCORING STATS

Lewandowski just edges Haaland when it comes to goals scored in league matches this season, with 27 to his name compared to 26 for the Dortmund star, whose figures include his time with both Salzburg and BVB.

However, the Poland international has spent 546 minutes longer on the pitch then Haaland, who has scored a goal, astonishingly, for every 64.5 minutes he has spent on the pitch.

Lewandowski's mark is 17.8 minutes longer than Haaland, but he still averages more than a goal a game with his minutes-per-goal rate also impressive at 82.3, his goals having come in just 25 appearances.

While it is worth bearing in mind Haaland was playing against weaker opposition in Austria, he has only needed 2.8 shots per goal, compared to 4.2 for Lewandowski.

The Bayern star is more of a presence in the opposition penalty area though, with 22 per cent of his touches there, compared to 18 per cent for his rival.

Both players are scoring more than their expected goals rate, with Haaland's 10 Bundesliga strikes defying an expected rate of 6.0, while Lewandowski's 27 are favourable to his expected tally of 25.1.

When it comes to creativity, it is another mixed picture, as Lewandowski has laid on 27 chances for his team-mates, compared to 21 for Haaland.

However, Haaland has 6 league assists to his name, twice as many as Lewandowski, who has 3.


KEY OPTA FACTS

Haaland

- The Dortmund striker became the youngest player to reach the milestone of scoring 15 goals in the Austrian Bundesliga. He was 19 years, three months and 20 days old at that moment.

- Haaland did not need long to get comfortable in the BVB jersey. He scored in all three competitions in his debut appearance: a hat-trick in the German Bundesliga against Augsburg, a goal in the DFB-Pokal loss to Werder Bremen, and two goals in the Champions League against Paris Saint-Germain.

Lewandowski

- The in-form Bayern star got his 27th goal of the season on the 27th matchday of the league season, which represents his personal best. The overall Bundesliga record is held by Gerd Muller, who had 34 goals by the 27th match round of the 1971-72 season.

- Lewandowski has scored 12 goals in his last six Bundesliga matches against Dortmund. He has netted a total of 16 league goals against his former side – only Klaus Allofs has more (18).