sentence1: DOHA, Qatar (AP) — Casey Stoner led from start to finish to win the MotoGP season opener on Monday and complete a personal hat trick of victories in Qatar. The Ducati rider produced a near-perfect race under lights to win the 22-lap race with a time of 42 minutes, 53.984 seconds at the 5.38 kilometer (3.34 mile) Losail International Circuit. The 23-year-old Australian finished ahead of defending world champion Valentino Rossi of Italy and Jorge Lorenzo of Spain. Yamaha rider Rossi crossed the finish line 7.771 seconds behind Stoner.
sentence2: Valentino Rossi is the Ducati rider in the MotoGP.