Mark Selby crashes out in second round of English Open, Ryan Day ousts Stephen Maguire

Updated 13/10/2016 at 10:25 GMT

World champion Mark Selby crashed out of the English Open in the first round, losing 4-3 to Liam Highfield - but Ronnie O'Sullivan made it through.

Ronnie O'Sullivan in action

Image credit: Reuters

Highfield, ranked 106 in the world, had met the world number one twice before, and their head-to-head record stood at 1-1 coming into the second round match.

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Selby, 33, struggled for fluency throughout but did post breaks of 89 and 99.

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The 99 drew the two-time world champion level at 3-3 but Highfield retained his composure to see out the biggest win of his career in the deciding frame.

"You've got to start somewhere - to beat the world champion is a good result," said Highfield afterwards.

Ronnie O’Sullivan made it through 4-3 against Zhao Xintong, who scored two centuries and took a 3-2 lead, but could only make 28 in the sixth frame.

A break of 62 put O’Sullivan in charge of the decider, and he secured the win and a third-round match with Chris Wakelin

O'Sullivan: 'Zhao Xintong could be unplayable - he reminds me of my son!'

Ryan Day prevailed 4-3 in a dramatic and tense encounter with Stephen Maguire.

Day took the first frame courtesy of a 61 but Maguire, 35, looked in fine fettle as he clinically wrapped up frames two and three with runs of 82 and 126.

Maguire should have opened up a two-frame advantage but faltered and Day pounced to level matters in frame four.

A 110 gave Maguire the advantage but Day claimed the remaining two frames to progress to the next round.

This is the first of the four Home Nations tournaments - if one player wins all four, he would receive a bonus of £1m.