Clearly struggling under pressure.
Her Australian Run definitely caught our attention, but of the opponents she had to play, it was quite an easy run, and with Williams more or less injured, it was no surprise she went as far as she did.
Halep easy, Mladenovic that was before her breakthrough tournament, but even since then she hasn't set the tour alight and has struggled herself, Robson many people said Sloane would win and she did, then Jovanovski who had a good run herself.
Sloane didn't have to play another seed until the Quarter Finals against Serena.
Now she is coming up against better equipped players, and players ranked in the top 32 and struggling, like Zakopalova, Cirstea and Aga, while also suffering poor defeats to Urszula and now Mattek Sands.
Think it's a mixture of pressure, and playing better opponents is what she is struggling to deal with.