The fourth round of the FIM Motocross World Championship will take place at one of the best circuits on the calendar this weekend as the visit to Sevlievo not only kicks the series back into life after a two week break but also initiates the first meeting of five in the first ever Women’s World Championship. Van Beers Yamaha’s Katherine Prumm, a double Women’s World Cup winner, is struggling for full fitness after rupturing her right ACL (Anterior Cruciate Ligament) while practicing this week.