Stevens said flu affected his balance and vision

Four breaks of over 50 and one of 133 won the second round match for Selby, but Stevens was angry at having to wear a bow tie despite suffering from flu.

"I went to the doctor to get a note so I wouldn't have to wear a tie but I was told I wouldn't be allowed," he said.

"Mark played well, so I'm not making excuses, but it doesn't help."

Selby, who whitewashed Ian Preece in the first round, took just over an hour to beat Stevens and was a deserved winner.

"I felt a bit of pressure, but I quickly settled and played really well," he said.

"I'm hitting the ball really well and feeling confident. I've come here to win the tournament."

Defending champion Stephen Lee is also out after going down 5-2 to Nigel Bond.

The 41-year-old Bond said: "I seem to be in a winning bubble at the moment.

"Two or three years ago I got back into the top 32 - and I've never lost my desire.

"I still love the game and couldn't see myself doing anything else."

Bond's highest break was only 68 but he took three straight frames to win after Lee had levelled at 2-2.

John Higgins was another shock casualty after qualifier Andrew Higginson came from behind to win 5-3.

Last season's Masters and Grand Prix winner squandered a 3-0 lead against the Widnes qualifier and missed a gilt-edged chance to go 4-0 ahead.

Higginson, in only his second ranking event of the season, said: "Without a shadow of a doubt that's the best win of my career."

But two other Scots, Stephen Maguire and Jamie Burnett did go through.

Maguire hit breaks of 121 and 111 on his way to a 5-0 second-round win over Alan McManus, while Burnett edged Robert Milkins 5-3 in their first-round match.

Burnett's top break was a mere 43 but it proved enough for the world number 54 to book a last-32 showdown with two-time Welsh Open champion Mark Williams.