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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.
Did Marat Safin celebrate after he won the Australian Open Grand Slam in 2005?
What happened after Marat Safin won the Australian Open Grand Slam 2005 tournament?
Marat Safin's best result at Wimbledon was reaching the semifinals in 2008, beating No. 3 Novak Djokovic en route.

Question: What important event happened after that?
Self-contained rewrite: What important event happened after Marat Safin reached the semifinals at Wimbledon 2008?