Japan's Naomi Osaka steamrolled into the third round of the China Open with a 6-2, 6-0 win over German qualifier Andrea Petkovic in a seemingly effortless hour on Tuesday afternoon.Osaka made quick work of the former world No. 9 on the Lotus Court at Beijing's National Tennis Center, conceding just one break point opportunity and capitalizing on Petkovic's 16 unforced errors and five double faults.The world No. 4 and fourth seed fired off 21 winners and five aces, and won 91 percent of her first serves to keep alive her hopes of securing a spot at the season-ending WTA Finals in Shenzhen st…READ FULL ARTICLE