Conversation so far:
What was Marat Safin's first injury?
In 2003, Marat Safin missed the majority of the season due to a wrist injury.
What was the biggest injury Marat Safin received?
During the 2005 clay-court season, Marat Safin suffered a knee injury.

Question: How did his injuries affect him?
Self-contained rewrite: How did Marat Safin's injuries affect him?