Monday's play at the Australian Open set up the remaining quarterfinal matchups and featured one notable surprise on the men's side.

Raonic Upsets Wawrinka

Two-time major champion Stan Wawrinka faced Milos Raonic as two top players looked to advance into the quarterfinals. But it was Raonic who would survive after a five-set battle, 6-4 6-3 5-7 4-6 6-3.

The Canadian, who finally appears healthy again, tilted the first set at 4-4 by breaking Wawrinka’s serve. He would close out the set on his racket. However, it was a fairly pedestrian serving set for the big-hitting Raonic, who instead found success with clean, consistent groundstrokes along with solid play at the net.

The 14th seed struck first again in the second set, breaking the Swiss early. And although Wawrinka would strike back by gaining a break himself, Raonic would find success on the fourth seed’s serve once more. Despite not racking up his typical ace total, the 25-year-old gained excellent court position behind body serves. Mixing in even more impressive net play, Raonic would not waver and closed out the set.

With both players successfully holding serve throughout the third set, it appeared a tiebreak was inevitable. But as the crowd began to get behind Wawrinka, hoping for more tennis, he became more confident. The 30-year-old would break late in the set and close it out on his serve to creep back into the match.

Early in the fourth set, Raonic threatened the veteran’s serve, but Wawrinka found key shots to save potential breaks and changed the momentum. He would parlay that momentum into his own break of serve and force a decisive fifth set.

In the pivotal sixth game of the last set, a tug-of-war occurred as Raonic attempted to break through the Wawrinka serve.  The defending French Open champion fought hard but could not hold, and the match swung in Raonic’s favor. Using impressive net skills and his big serve, Raonic closed out the match and advanced after one of the biggest wins of his career. He will face Gael Monfils next in the quarterfinals.

Kerber Moves to Quarterfinals

Angelique Kerber has been playing as soundly in Melbourne as she has at any point in her career. But she would need to get by a fellow countrywoman to continue her successful run. She would do just that, defeating Annika Beck, 6-4 6-0.

Both players found it difficult to hold serve in a first set during which there appeared to be an advantage to returning instead of serving. But after a combined seven service breaks in the set, Kerber was finally able to hold hers at an important time to serve out the first set.

The seventh seed would find her groove and a burst of energy in the second set, and on the strength of her backhand, she would sprint out confidently. Kerber appeared less nervy as she took control of the play, dictating the points. She would easily complete the bagel set and advance to the quarterfinals after breaking her opponent’s serve seven times during the contest.

The German had entered Melbourne with the fourth round being her best result. With the victory, she will advance to face Victoria Azarenka.

Azarenka Advances

With the women’s draw turned upside down, Victoria Azarenka has become a popular pick as a contender to win her third Australian Open title. She took a step closer with a 6-2 6-4 win against Barbora Strycova.

After a couple uneventful games, Azarenka took control of the first set behind her serve and sharp, solid groundstrokes. She would force Strycova into a high number of unforced errors while posting a dominating service set in which she would win 93 percent of her first-serve points.

Strycova found some success in the second set, particularly with the Belarusian’s second serve. But Azarenka reaped the benefits of her continued successful first serve and found the one break that she would need to take the set. She appears to be back to 100 percent health at the right time to challenge for the title.