Kevin Anderson has revealed his disappointment after being knocked out of the Australian Open by Rafael Nadal.

The Spaniard looked in commanding form in the latter stages of their last-16 contest and Anderson has suggested that he had allowed one game that did not go his way during the match to get into his head.

"I was a little bit disappointed by how much I let that one game [the 12th] affect me," Anderson said after the loss.

"I felt that I started off really well. It was the kind of tennis that I need to play to be here. I just needed to be much more consistent within that."

Third seed Nadal will now face Tomas Berdych in the quarter-final stage next week.