Heather's match is first up on Stadium court today, 11am their time. I really hope she gets a good night's sleep. At least both her matches yesterday were only 2 sets, but still that will amount to really a lot of match play in a short space of time.
Tonight's match is a great opportunity for Heather to make a Premier level quarter final.
Her opponent Yung-Jan Chan has a pretty ordinary record over the last couple of years (only beating top 100 players through retirements), apart from the French Open where she had excellent runs in both 2011 and 2012.
Heather has been so consistent it's hard to see any problems for her here, even allowing for the fact she has played quite a lot of tennis recently and two matches into the evening yesterday followed by the first match today.