Mark Selby admits he isn’t feeling sharp and hopes to improve at the International Championship in China after crashing out of the Riga Open.

The world number six made a flying start to the event in Latvia after beating Harvey Chandler 4-0 on Friday, before getting a walkover in round two.

He returned to action on Saturday but had to show grit and determination to overcome 2006 world champion Graeme Dott. Selby trailed 3-0 before recording breaks of 71, 53, 63 and 55 to wrap up a 4-3 victory and book his spot in round.

In a cruel twist of fate, Stuart Carrington came from two frames down to win four in a row and send Selby packing in the third round.

Selby admits he isn’t currently firing on all cylinders but hopes to put that right in time for the International Championship in China next month.

“I don’t feel sharp at the moment because it’s the start of the season. I’m happy I came here because I’ve missed it for the last few years. I’m looking forward to the International Championship in China now,” Selby said.

World number 50 Carrington, who is priced at 7.00 to win the Riga Masters, takes on compatriot Mark Joyce, ranked four places lower, in the quarter-finals on Sunday.

Joyce also upset the odds by downing last year’s runner-up Jack Lisowski 4-3 in a third round match that finished after midnight in the Latvian capital.

Carrington can be backed at 1.83 to win Sunday’s quarter-final tie, while Joyce is priced at 1.95 to prevail.