Vasek Pospisil is rolling through the draw one upset at a time. Although, his third-round match against world No. 8 Roberto Bautista Agut went the distance, the Canadian flipped the switch to get past Bautista Agut, 7-5, 2-6, 4-6, 6-3, 6-2.

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Pospisil called for the physio at 1-1 in the fourth set, and then commanded the court for the remainder of the match.

"I have an ab strain which kind of gets irritated as the match goes on and then the thigh, I did something to my quad," Pospisil told press."I strained my quad. I didn’t really feel it on my serve after that and on my movement. That was one of the situations where the physio really made a big impact on how my body felt the rest of the match."

The world No. 94 skipped last week's Western and Southern Open, but he would defeat compatriot Milos Raonic in the second round of the US Open.

"I think I'm more mature, using my energy more wisely," Pospisil told press. "I think as you get older, you figure those things out a little bit better."

The US Open is a special place for the 30-year-old, it's where he claimed his first Grand Slam match in 2011 and he's faced a couple of hard five setters that didn't go his way. It's safe to say that things are finally going his way.

Fast Facts:

1

The Canadian recently launched his first company called Hekate, a mushroom supplement.

25

His highest ranking which was obtained in 2014.

'07

The year he turned pro.

Next up for Pospisil is Aussie Alex de Minaur who he has yet to beat. His two losses to the world No. 28 were both on hard courts in 2018.