There were a few tournaments throughout the year of 2008 in tennis so there isn't really a valid champion for the year. But, here are some tournament champions throughout that year:
U.S. Open - Roger Federer
Wimbledon - Rafael Nadal
French Open - Rafael Nadal
Australian Open - Novak Djokavic
Providing there is no rain at Wimbledon (very likely), please come back on Sunday evening 6th July 2008, and I will have your answers for you, as my crystal ball has fogged up. Mens Champion.....Rafael Nadal Ladies Champion.....Venus Williams
Mens Doubles.....Daniel Nestor & Nenad Zimonjic
Womens Doubles..... Venus & Serena Williams
Mixed Doubles..... Bob Bryan & Samantha Stosar.
MEN:
Australian Open: Novak Djokovic
French Open: Rafael Nadal
Wimbledon: Novak Djokovic
U.S. Open: Novak Djokovic
WOMEN:
Australian Open: Kim Clijsters
French Open: Li Na
Wimbledon: Petra Kvitova
U.S. Open: Samantha Stosur
Rafael Nadal of Spain won the gold medal and Elena Dementieva won the gold medal for women's tennis.
that would be nadal, but federer and roddick give him a run for his money
Rafeal Nadal Won Wimbledon in 2008 beating rodger federer in the final
Rafael Nadal
Greg Norman
Dubai Tennis Winner 2009
Novak Djokovic won the 2009 Barclays Dubai Tennis Championship.
Pete Sampras
$850,000
Rafael Nadal
Rafael Nadal.
Venus Williams (USA)
Come on... it was Roger Federer. Epic 5 setter against Roddick.
Venus Williams.
Jimmie Johnson was the champion in 2008 which made it his third in a row.
Serena Williams(USA)