 Complete the following phrase:  In 1990, Kelly was due to lose his professional status after being defeated 710 by Jason Ferguson in a play-off match, one of a series of matches where the lowest-ranked professionals faced leading amateurs with places on the professional tour at stake. However, the WPBSA soon opened membership for events to anyone over the age of 16 that paid the relevant fee, and Kelly continued to play in professional tournaments until 1992, finishing the 199192 snooker season ranked 188th, He also entered the World Snooker Championships in 2002, 