 Complete the following phrase:  Doug Mountjoy 8 June 1942  14 February 2021 was a Welsh snooker player from Tir-y-Berth, Gelligaer, Glamorgan, Wales. He was a mainstay of the professional snooker circuit during the late 1970s and 1980s, and remained within the top 16 of the world rankings for 11 consecutive years. He began his professional snooker career by winning the 1977 Masters, which he had entered as a late replacement. He won the 1978 UK Championship and the 1979 Irish Masters, and reached the final of the 