SHANGHAI, CHINA - OCTOBER 12: Ivo Karlovic of Croatia wipes his face during his match against James Blake of USA on day two of 2009 Shanghai ATP Masters 1000 at the Qi Zhong Tennis Centre in Shanghai. (Photo by Victor Fraile/Getty Images)

SHANGHAI, CHINA - OCTOBER 12: Ivo Karlovic of Croatia returns a shot to James Blake of USA during day two of 2009 Shanghai ATP Masters 1000 at the Qi Zhong Tennis Centre in Shanghai. (Photo by Victor Fraile/Getty Images)

SHANGHAI, CHINA - OCTOBER 12: Ivo Karlovic of Croatia serves against James Blake of USA during day two of 2009 Shanghai ATP Masters 1000 at the Qi Zhong Tennis Centre in Shanghai. (Photo by Victor Fraile/Getty Images)

SHANGHAI, CHINA - OCTOBER 12: Ivo Karlovic of Croatia returns a shot to James Blake of USA during day two of 2009 Shanghai ATP Masters 1000 at the Qi Zhong Tennis Centre in Shanghai. (Photo by Victor Fraile/Getty Images)

SHANGHAI, CHINA - OCTOBER 12: Ivo Karlovic of Croatia returns a shot to James Blake of USA during day two of 2009 Shanghai ATP Masters 1000 at the Qi Zhong Tennis Centre in Shanghai. (Photo by Victor Fraile/Getty Images)

Ivo Karlovic of Croatia hits a return against US tennis player James Blake during their first round match at the ATP Shanghai Masters tennis tournament in Shanghai on October 12, 2009. Blake won 3-6, 7-6, 6-3. AFP PHOTO / PHILIPPE LOPEZ (Photo credit should read PHILIPPE LOPEZ/AFP/Getty Images)

Ivo Karlovic of Croatia hits a return against US tennis player James Blake during their first round match of the ATP Shanghai Masters tennis tournament in Shanghai on October 12, 2009. Blake won 3-6, 7-6, 6-3. AFP PHOTO / PHILIPPE LOPEZ (Photo credit should read PHILIPPE LOPEZ/AFP/Getty Images)

Ivo Karlovic of Croatia hits a return against US tennis player James Blake during their first round match of the ATP Shanghai Masters tennis tournament in Shanghai on October 12, 2009. Blake won 3-6, 7-6, 6-3. AFP PHOTO / PHILIPPE LOPEZ (Photo credit should read PHILIPPE LOPEZ/AFP/Getty Images)