Conversation so far:
What happened with Sam Thompson and the 1896-98 seasons?
At age 36, Sam Thompson played his last full season of professional baseball in 1896.
What was the reason Sam Thompson played his last season?
What happened after Sam Thompson's last season?
In 1897, at age 37, Sam Thompson was sidelined by pain and appeared in only three games.
Was Sam Thompson hospitalized?

Question: How long was he in pain?
Self-contained rewrite: How long was Sam Thompson in pain?