Graeme Dott had to play three best-of-19-frame matches to qualify . He overcame Ricky Walden 2015 in first-round Crucible clash . But former world champion fears exhaustion will ruin his bid for 10-8 title . Meanwhile , John Higgins impressed with a 10-5 victory over Robert Milkins .
Graeme Dott had to play three best-of-19-frame matches to qualify . He overcame Ricky Walden 10-8 in first-round Crucible clash . But former world champion fears exhaustion will ruin his bid for 2015 title . Meanwhile , John Higgins impressed with a 10-5 victory over Robert Milkins .