Movistar Yamaha MotoGP Team's Maverick Viales and Valentino Rossi have started their quest at the 'Cathedral' with a full-on schedule for the Friday. Their first day at the TT Assen Circuit was filled with preparing their bikes' set-up and tyre allocation as well as trying the updated frame, and their hard work paid off. They booked solid progress, setting the first and sixth fastest time of the day respectively.