He said: "Well generally it doesn't bother me at all if Aubameyang right now is kicking it around somewhere else".
Dortmund CEO Hans-Joachim Watzke confirmed to SID, an AFP subsidiary, that there has now been contact with Arsenal, but said reports of a possible fee are "speculation" and "the first contact has not been about money".
Hertha are 11th on 24 points but victory over Dortmund could move them into the top seven.
Dortmund coach Peter Stoeger has told magazine Sport Bild he "assumes" Aubameyang, who has scored 21 goals in 23 matches this season, will stay, but "if he leaves, it will be hard to replace him with that goal quota".
Kohli becomes second Indian to 900 Test ranking points
Smith scored six hundreds a year ago in just 11 Tests, averaging 76.76 to reclaim the title he first won in 2015. Kohli's Australian counterpart Steve Smith bagged the honour of being the Test Cricketer of the Year.
Roy Halladay's autopsy reveals traces of alcohol and morphine
Halladay was a two-time victor of the Cy Young Award given to the best pitchers in the league during his 16-year MLB career. Halladay, known as "Doc", pitched four seasons with the Phillies before retiring after injuries cut short his 2013 season.
Fatah: US action will restrict the work of UNRWA
Security Council resolution denouncing President Donald Trump's decision to recognize Jerusalem as the capital of Israel. The United States , far and away the largest donor to UNRWA, pledged $355 million toward agency operations in 2016.
Australian Open: Rafael Nadal in unstoppable form
But the world No 1 soon regained the advantage he had built up and ran out a 6-1 6-3 6-1 victor against No 28 seed Dzumhur. Open finalist previous year , took just 41 minutes to beat Russian Ekaterina Alexandrova 6-0 6-1 in the second round.
Apple follows Amazon; announces plans of setting up campus
Late previous year , Apple opened a new Northern California headquarters, a circular layout that resembles a giant spaceship. The company recently agreed to pay more than US$100 million in taxes to British authorities after an audit.