Hello and welcome to the MSN Sport live US Open blog. It's a GB double header today. Reigning champion Andy Murray is in action later, but first it is time for Laura Robson to try and reach the last 16 for the second year running.
Robson is on the main stage and is due first up on Arthur Ashe Stadium. But it will not be easy, with number 5 seed, China's Na Li the opponent.
That may seem a very daunting prospect but the pair have only ever met once before. In the third round of the US Open last year, which Robson won.
Li Na has won both of her matches 6-2 6-2 so far in this tournament, beating Olga Govortsova and Sofia Arvidsson.
Robson has also been in great form so far, not dropping a set in wins over Lourdes Dominguez-Lino and Caroline Garcia. But this is a big step up to defeat a three time Grand Slam finalist.
Both players are just finishing their warm-up routines and we will be underway very shortly.
Perhaps some early nerves as Robson sends two early points long and trails 15-30 in the opener.
GAME NA 0-1 - Nightmare start for Robson as she loses the opening game with serve. Will want to bounce back straightaway as that was sloppy from the Brit.
GAME NA 0-2 - A dominant start as Li Na races into a 40-0 lead. But Robson rallied back to 40-30 only to force one just long to give the Chinese player a 2-0 first set lead.
Not many people in Arthur Ashe court this early (11am NY time), but a few woops of encouragement for Robson as she comes out to serve.
GAME ROBSON 1-2 - And Laura gets off the mark. Na Li had a break point chance but some good shots from the Brit ensures she holds serve.
This is the first tournament where Laura Robson has been seeded so for once she has not exceeded expectations at all by reaching this stage. Na looking confident so far.
First challenge of the day and it comes from Robson. The ball was called out and it was.... out. Just.
Can Robson turn it around or is Li Na's revenge mission going to be unrelenting? Set two underway now, Robson serving.
Li Na charging all around the court but much better from Robson with a little fist pump after Na goes long.
The crowd are certainly in Robson's corner, with good applause as she has break points for the first time in the match.