Manchester United star Robin van Persie is the “best forward ever”, according to Borussia Dortmund coach Jurgen Klopp.

The German claimed seeing the Dutch striker when playing against Arsenal in the Champions League last season has helped his side to change their game sufficiently to improve in this year’s outing.

Old Trafford boss Sir Alex Ferguson gave the go ahead to sign Van Persie from the Gunners in the summer for £24million and he is unlikely to disagree with Klopp’s assessment if the first half of the season is anything to go by.

Arsene Wenger has often waxed lyrical about his former captain’s attributes and it seems Van Persie has made a similar impression on the Bundesliga champions’ manager.

“Personally, when we played against Arsenal in London, I saw the best forward ever: Robin van Persie,” Klopp said in a interview.

“I didn't know a player could play three positions during 90 minutes. It was a great experience – and we want to use that now.”

Dortmund finished bottom of the Champions League group they shared with Arsenal, but it appears as though they have learnt their lesson this time around.

Drawn in this year’s ‘Group of Death’ with Premier League champions Manchester City, La Liga champions Real Madrid and Eredivisie champions Ajax, Dortmund were very impressive in finishing top of the group.

Meanwhile, Robin van Persie has simply continued the incredible form he was showing for Arsenal last season since his move to Manchester United.

The 29-year-old is, once again, leading the Premier League scoring charts having found the net 17 times in the 22 fixtures he has taken part in.

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