Despite the festive season, Borussia Dortmund coach Jurgen Klopp has said his side must not give away any more points when they host Bayer Leverkusen in Saturday's key Bundesliga clash.

Third-placed Dortmund take on second-placed Leverkusen at Borussia's Westfalenstadion with both teams battling to stay in touch with European champions Bayern Munich, who are four points clear of Leverkusen and seven ahead of Dortmund.

Dortmund slipped to third last month when they suffered back-to-back league defeats at Wolfsburg and at home to Bayern, having lost their entire back four to injury, but this is their chance to reclaim second.

"There are three league games left this year, we have nothing more to give away and we all want to win," said Klopp.

"We have 31 points, which isn't bad, nevertheless we have lost points along the way and that has hurt us."

Should Dortmund win and Bayern win or draw at Werder Bremen, to extend their unbeaten Bundesliga run to a record 40 matches, the Bavarians would open a seven-point gap at the top.

Leverkusen, coached by ex-Liverpool defender Sami Hyypia, were thrashed 5-0 at home by Manchester United in the Champions League ten days ago and are eager to restore battered confidence against Borussia Dortmund.

"They have the chance to make amends against us, but we are at home and we have ambitions of reaching a high position in the table," said Klopp.

"A win against Leverkusen is always something special."

Hyypia was guarded about his side's chances at Westfalenstadion.

"It is always hard to take something from Dortmund," said the ex-Finland star.

"Borussia have shown, over several years, that they are a top team.

"They are simply better and we should be pleased that we are currently in front of them in the table."

Dortmund's main injury concern is Germany midfielder Marco Reus, who is nursing a calf injury.