Conversation so far:
What was something that happened with Jason Leonard in 1990?
Jason Leonard won his first cap in a 'friendly' on 28 July 1990, against Argentina in Buenos Aires.
Were there other cap wins in 1990 for Jason Leonard after winning his first cap in a 'friendly' on 28 July 1990 against Argentina in Buenos Aires?
What happened in 1991 with Jason Leonard?
During this period, England won back-to-back Grand Slams in 1991 and 1992.

Question: Did Leonard play an important role in these wins?
Self-contained rewrite: Did Jason Leonard play an important role in these back-to-back Grand Slams by England in 1991 and 1992?