Christian Pulisic has impressed for Dortmund but could cost over £25m

Coutinho out for six weeks, Danny Ings is also out with long-term injury

Liverpool are ready to step up their pursuit of Borussia Dortmund prodigy Christian Pulisic in the wake of injury to Philippe Coutinho.

EXCLUSIVE CHRISTIAN PULISIC INTERVIEW Read our exclusive interview with the Borussia Dortmund youngster from early November Advertisement

Coutinho is facing six weeks out with ankle ligament damage and, coupled with the long-term injury of Danny Ings and Sadio Mane's absence at the Africa Cup of Nations, Liverpool are looking to add another attacking option.

Pulisic is versatile as he can play on either wing or through the middle behind the striker, though it is understood it would take close to £25million for Dortmund to even consider selling.

Liverpool are ready to step up their pursuit of Borussia Dortmund prodigy Christian Pulisic

18-year-old Pulisic (right) is versatile as he can play on either wing or through the middle

Liverpool forward Philippe Coutinho is facing six weeks out with ankle ligament damage

WHO IS CHRISTIAN PULISIC? Age: 18 Position: Right wing Club: Borussia Dortmund Bundesliga games: 18; Goals: 4 National team: USA International caps: 11; Goals: 3 Advertisement

The 18-year-old has figured in 14 games for Dortmund this season and has developed into a key performer, however the return from injury of club favourite Marco Reus could push him onto the sidelines and give Liverpool a timely advantage.

Dortmund do not wish to sell but a substantial offer could yet prove tempting and Pulisic has previously expressed a desire to play in England, where he lived for a year when he was seven.

He said: 'A lot of people don’t realise but it really brought on my passion for the game. After school every day, I was just out for hours in the park, playing with my schoolmates.

‘That’s really where my love for the game started to come alive and that was a big part of my development.

‘There were so many players that just showed so much skill and confidence in their games. I just loved the English style.'

Liverpool have serious injury problems up front, with striker Danny Ings also unavailable

In January Sadio Mane (right) will leave Anfield for the Africa Cup of Nations with Senegal

The USA international is under contract until 2019 and Dortmund sporting director Michael Zorc has discussed offering new terms.

Liverpool had a bid for Pulisic rejected in the summer, as did Bundesliga pacesetters Red Bull Leipzig.

'There have been some offers for him in the summer window from England and from German clubs,' Zorc told Sports Illustrated.

USA international Pulisic is under contract until 2019 and Dortmund won't sell for under £25m

'But we would like to have him here and develop him here. We didn’t educate him to sell him. We have a long-running contract until 2019, but because of his development the club is ready to speak to him to prolong his contract at any time.'

However, despite his continuing development and rival interest, reports in Germany say Dortmund have yet to agree any new deal.