 He returned in 1988 and defeated Finland's Tapani Uitos in round one but lost in the second round to Peter Evison from England.Before all this, McMullan reached the semi-finals of the 1984 Winmau World Masters, beating Angel Ruiz, Christer Pilbald, Ellis Elsevif, Peter Locke, Nicky Skinner Jocky Wilson and Alan Evans before losing to reigning champion Eric Bristow who eventually retained his title.He retired in 1999 due to health problems.