Conversation so far:
when did pinball start football?
In 1987, Clemons was drafted by the Kansas City Chiefs of the National Football League.
what was his positon on that team?
Clemons played in eight games, predominantly as a punt returner.
did his team win games a lot or championships?
In his first game with the Argonauts, Clemons was named the player of the game.
what were his stats throughout his career?
In 1990, Clemons received the CFL's Most Outstanding Player Award after setting a single season record for all-purpose yards (3,300.
did he get any awards or special recognition?
The following year, Clemons won his very first football championship as his Argonauts defeated the Calgary Stampeders to win the Grey Cup.

Question: which year was that?
Self-contained rewrite: Which year did Pinball Clemons win his first football championship?