Oliver Lines produced a major upset at the English Open by beating world number one Zhao Xintong 4-2 in the first round, despite the reigning world champion firing in two century breaks. The result is one of several shocks in Brentwood, with world number four Neil Robertson also dumped out, highlighting the unpredictable nature of the early rounds against China's rising pack of players.

The tie between Lines and Zhao was level at 2-2 after four frames before the 31-year-old Englishman, ranked 53rd in the world, produced breaks of 77 and 84 to close out victory and reach the last 32, where he will face Yuan Sijun. Elsewhere, Robertson lost 4-3 to China's Luo Zetao, while former world champion Kyren Wilson beat Poland's Mateusz Baranowski 4-1 and Ding Junhui edged past Michael Holt 4-3.