Australian Open 2014 Serena Williams - heat problems

Serena Williams

Williams beat Vesna Dolonc 6-1 6-2 but admitted the heat had an impact on her preparation.
"I kept waking up in the middle of the night last night just paranoid," said the 32-year-old American. "I just wanted to stay hydrated. The last thing I want to do is to cramp in this weather. It can happen so easily.
"The conditions in my match were OK. I wasn't here [on Tuesday]. I heard they were a little bit extreme. I didn't really even go outside."
Temperatures are expected to reach maximums of 42C and 43C on Thursday and Friday respectively, before cooling to around 20C.
Britain's Andy Murray faces Vincent Millot of France at around 20:30 local time (09:30 GMT) on Thursday.
Several bushfire warnings are in place in south-east Australia because of the extreme weather.