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 nwetara ọkwá nke atọ. Ọ bụkwa onye nke atọ na
1989 European Cup n'agbanyeghi na ọ ka na-adịghị mma. 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. Mgbe ọ dị afọ iri atọ na ise, Sanderson meriri n'asọmpi Iko Mba Yurop n'afọ 1991, n'ihu ndị na-agba ya bụ asọmpi gụnyere Felke, onye na-achịkwa ụwa n'oge ahụ.