Mezue ahịrịokwu na-esonụ: Mgbe Sanderson kwusịrị na ya ga-akwụsị ịgba javelin n'egwuregwu Olimpik nke 1988, ọ lọghachiri n'asọmpi n'ụzọ a na-atụghị anya ya n'afọ 1989, n'asọmpi McVitie's International Challenge, bụ́ ebe o meriri n'ọnọdụ nke atọ. Ọ bụkwa onye nke atọ na 1989 European Cup n'agbanyeghị na ọ ka na-erughị eru. N'egwuregwu Commonwealth nke afọ 1990, ọ bụ naanị otu iko ka Sanderson ji chekwaa aha ya. Na 1990 European Athletics Championships Sanderson kwụsịrị nke iri na abụọ, mana emesịrị kwalite ya na nke iri na otu mgbe Felicia Ţilea kwụsịrị. N'ịbụ onye dị afọ 35, Sanderson meriri na
1991 European Cup, n'ihu otu egwuregwu nke gụnyere onye na-achị ụwa Felke.