Conversation so far:
When did Red Grange start Red Grange's NFL career?
On December 6, 1925, between 65,000 and 73,000 people showed up at the Polo Grounds to watch Grange, helping save the New York Giants' franchise.
Did he win the game?
Grange scored a touchdown on a 35-yard interception return in the Bears' 19-7 victory.
What happened after that game?
In his first year, he accounted for at least 401 total yards and three touchdowns in his five official NFL games for the Bears.
When did he join the Giants?
CANNOTANSWER.

Question: What other games were important in his career?
Self-contained rewrite: Besides Red Grange's first game, what other games were important in Red Grange's career?