Holger Rune makes charity pledge ahead of Indian Wells as he aims to help underprivileged Danes

Tennis star Holger Rune will have extra motivation at this year's Indian Wells tournament, as the Dane has declared he will make a charitable donation for every ace he hits at the ATP Masters 1000 event.

The Indian Wells tournament kicks off on Wednesday, March 6 and Rune, being the seventh seed, has a first round bye. However, the 20-year old will have his work cut out for him in the second round, as he is set to face either former World No.3 Milos Raonic or 22-time Grand Slam champion Rafael Nadal.

Rune announced he will be making a donation of 2,500 Danish Krone, which equates to about $364, for every ace he hits to Borns Vilkar, a charitable organization that helps vulnerable children in his home country of Denmark.

"All children have the right to a safe childhood and an adult to talk to," reflected the young star. "I myself am very aware of the privileged childhood I have had, and how important it has been to my life and the opportunities I have today. Unfortunately, not everyone is aware of this, and it always makes an incredibly big impression on me when I hear about children who are exposed to failure."