The tennis Grand Slam means the winning of the 4 Major tennis events (Wimbledon, US Open, the French Open and the Australian Open) in one calendar year.
This year, Roger Federer
Get a shop - fill it with tennis stuff - open it
Last year it was del Potro. This year's US Open won't be concluded until September 12, 2010.
There are countless professional tennis tournaments each year. There is no one extremely important tournament. The four grand slams (US Open, French Open, Wimbledon, and the Australian Open) are the biggest tournaments in tennis each year. in 2012 Novak Djokovic won the Australian Open and the three others have not been played yet.
There is no "2012 open tennis tournament".
Asian Open - tennis - was created in 1992.
Asian Open - tennis - ended in 1994.
Irish Open - tennis - was created in 1879.
Canadian Open - tennis - was created in 1881.
Mexican Open - tennis - was created in 1993.
Heineken Open - tennis - was created in 1956.
US Open - tennis - was created in 1881.
International Tennis Open was created in 1992.
International Tennis Open happened in 1992.
The US Open Golf Tournament began in 1895 The US Open Tennis Championships began in 1881.
4 Wimbledon French Open US Open Australian Open