After his courageous win over Australia's Matt Ebden two evenings earlier, the back pain Vasek Pospisil played through proved to be too much as the Canadian has regrettably withdrawn from the Australian Open.

Pospisil was set to play in the tournament's third round after ousting two Aussies in the opening two rounds. Sadly, Pospisil's luck has ended in Melbourne. The Vancouver injured his back during his doubles match and was set to take on Switzerland's Stanisials Wawrinka in the third round.

The 23-year-old was clearly disappointed when speaking to the media.

"I'm really disappointed to be pulling out. It's my first third round in a Grand Slam," Pospisil said. "I was excited to do my best and take the opportunity, but unfortunately not able to do so at this time.

"I don't want to jeopardize the rest of my season in any way. So it was just the smart move really to pull out, and be safe with my body and try and get ready hopefully in time for Davis Cup."

For the sake of his own health and well-being, it was certainly a wise move for Pospisil to withdraw from the tournament. With that said, it is very disappointing to see the 23-year-old having to step aside, especially considering all the promise he's shown down under thus far.