From a Reuters article on Brisbane results
Sixth-seeded Czech Petra Kvitova recovered from a pre-tournament asthma scare to defeat Spain's Carla Suarez-Navarro 6-3 6-4.
Kvitova has been gasping and wheezing in Brisbane's humid weather and revealed one of her recent attacks had been her worst in three years.
The 2011 Wimbledon champion was unaware she was asthmatic until she nearly collapsed during an event in New York in 2009.
"I was playing a tournament in the Bronx and after about five minutes I had to sit down and relax and have a drink because I just couldn't move and I couldn't play," she wrote in a column for the Courier-Mail newspaper.
"I still feel really uncomfortable when I'm in this sort of hot and humid weather and it was at practise on Friday that I started to feel a bit similar to what I did in The Bronx."