David Filer is a fierce competitor on and off the tennis court. The freshman from South Bend, Indiana is a top prospect for future collegiate scholarships and is known as a fierce player who refuses to give up. However, the teen is facing his toughest opponent yet in the form of brain cancer. During a USTA event in Arizona, Filer became sick and was diagnosed with glioblastoma multiforme an aggressive form of brain cancer.

A number of families from across the USTA's Midwest section have come together to start a GoFundMe campaign for Filer and his family to help pay for his medical expenses. They are hoping to reach $200,000; so far, they have raised $112,000.

Thankfully, Filer has received brain surgery to remove the tumor and is recovering very well. The family posted photos of him returning to short practices on the tennis court. Not even brain cancer can keep this kid away from the sport he loves. In the near future, Filer will be receiving proton radiation treatment in Orlando, Florida and plans to continue practicing and competing while undergoing treatment.

If you would like to donate to Filer's campaign, visit: www.gofundme.com/f/fight-with-filer