Keller Sports, the German e-tailer of premium sporting goods, expects its sales for 2019 to increase by 70 percent from the previous year. It plans to reach total sales of more than €100 million by the end of 2020. This is the first time that Keller Sports has announced its sales figures officially. The online retailer, which was created by the brothers Moritz and Jakob Keller in 2005, is on track to become one of the biggest sporting goods retailers in Germany by 2020.