Conversation so far:
Can you provide me with information on Marat Safin's World No. 1 and Grand Slam history?
Marat Safin held the No. 1 ATP ranking for 9 weeks during 2000 when he won his first Grand Slam at the US Open.
Are there any other interesting aspects about the Marat Safin article?
Marat Safin defeated Lleyton Hewitt in the 2005 final to secure his second Grand Slam in five years. En route to this final, he defeated top-ranked Roger Federer.

Question: Did he celebrate after he won the tournament?
Self-contained rewrite: Did Marat Safin celebrate after he won the Australian Open Grand Slam in 2005?