Novak Djokovic celebrated a historic milestone by reaching 100 career victories at Melbourne Park with a commanding performance over Pedro Martinez. Nuno Borges advanced to the Australian Open second round when seventh seed Felix Auger-Aliassime retired with cramping issues trailing 3-6, 6-4, 6-4 - the highest seed eliminated in men's draw so far. The day also produced a stunning upset as teenage wildcard Arthur Gea defeated 19th seed Jiri Lehecka in straight sets on his Grand Slam debut.

Djokovic reaches century milestone with clinical display

Novak Djokovic made history at his most successful venue, becoming the first player to reach 100 victories at the Australian Open with a dominant 6-3, 6-2, 6-2 dismantling of Pedro Martinez. The 10-time Melbourne champion delivered a flawless performance. The Serbian has not just avoided any breakpoints to defend, but managed to hold all his service games without facing any single pressure point - a historical achievement on the course of best of three sets battle at this level. Apart from this, Djokovic fired 14 aces while winning an exceptional 93% of first serve points. The Serbian's return game was equally impressive, converting 5 of 12 break opportunities while winning 16 of 40 return pressure points. Now just two wins away from surpassing Roger Federer's all-time record of 102 Australian Open match victories, Djokovic expressed his appreciation for reaching such milestones in the latter stages of his career.

Borges benefits from Auger-Aliassime's physical struggles

Portuguese veteran Nuno Borges found himself in the Australian Open second round after Felix Auger-Aliassime was forced to retire due to cramping in his upper left leg. The Canadian seventh seed, who reached the US Open semifinals in 2025, began experiencing physical difficulties early in the third set but battled through to force Borges into a fourth set before his body gave out. Auger-Aliassime required multiple medical timeouts and managed just two points in the fourth set before conceding the match. Borges, who reached the fourth round in Melbourne two years ago, showed excellent composure in pressure moments, winning 14 of 28 serve pressure points while capitalizing on 7 of 14 return pressure opportunities. The 28-year-old Portuguese acknowledged his opponent's struggles while expressing satisfaction with his competitive level throughout the encounter.

Teenage wildcard Gea shocks seeded Lehecka

French wildcard Arthur Gea announced himself on the Grand Slam stage with a remarkable 7-5, 7-6(1), 7-5 upset victory over 19th seed Jiri Lehecka in his major debut. The 19-year-old showed remarkable composure for a player making his first Australian Open appearance, particularly excelling in crucial moments by winning 17 of 25 serve pressure points. Gea's aggressive approach yielded seven aces while he maintained excellent discipline, converting 5 of 15 break point opportunities against the experienced Czech. The straight-sets scoreline masked the competitive nature of the encounter, with Gea needing to save three of six break points faced while capitalizing on key moments in each set. His victory represents one of the standout results of the opening round, defeating a player ranked 179 places higher.

Rublev cruises past Arnaldi in straight sets

Andrey Rublev continued his strong early-season form with a convincing 6-4, 6-2, 6-3 victory over Italian Matteo Arnaldi. The 14th seed demonstrated his trademark power from the baseline while showing improved tactical awareness, never facing a break point throughout the match. Rublev's serving was particularly effective, winning 76% of first serve points behind eight aces, while his return pressure was equally impressive with 12 of 23 points won when Arnaldi was under duress. The Russian saved all six break points he faced, showcasing the defensive resilience that has become a hallmark of his game. His clinical performance sets up an intriguing second-round encounter as he seeks to build on recent encouraging results.

De Minaur delivers for home crowd

Local favorite Alex De Minaur pleased the Melbourne crowd with a dominant 6-2, 6-2, 6-3 victory over American Mackenzie McDonald. The sixth seed was in complete control from the outset, winning 85% of first serve points while striking nine aces in a near-flawless serving display. De Minaur's pressure point statistics told the story of his dominance - winning 8 of 9 serve pressure points while capitalizing on 15 of 40 return pressure opportunities against McDonald. The Australian's movement and court coverage were exceptional, allowing him to dictate rallies from defensive positions and turn them into attacking opportunities. His comprehensive performance suggests he's well-prepared for another deep run at his home Grand Slam.

Paul powers past Kovacevic with serving masterclass

Tommy Paul delivered a serving masterclass in his 6-4, 6-3, 6-3 victory over Aleksandar Kovacevic, firing 20 aces while winning an exceptional 90% of first serve points. The 21st seed never faced a break point throughout the encounter, maintaining perfect composure in all five serve pressure situations. Paul's aggressive return game complemented his serving dominance, as he won 8 of 13 return pressure points while converting 4 of 6 break opportunities. The American's clinical performance showcased the improved consistency that has elevated his ranking over the past 12 months. His comprehensive victory sets up a promising second-round clash as he continues his quest for a breakthrough Grand Slam result.

Marozsan survives four-set test against Rinderknech

Fabian Marozsan showed excellent mental fortitude to overcome French veteran Arthur Rinderknech 6-3, 6-4, 6-7(2), 6-4 in a compelling four-set encounter. The Hungarian, fresh from his semifinal run in Auckland, demonstrated why he's climbed back into the top 50 with a composed performance under pressure. Marozsan won 8 of 8 serve pressure points faced, never allowing Rinderknech to gain momentum in crucial service games. His return game was equally impressive, capitalizing on 11 of 39 return pressure opportunities while converting 3 of 11 break chances. Despite dropping the third set tiebreak, Marozsan regrouped effectively in the fourth set to close out victory behind nine aces and disciplined baseline play.

Tien prevails in five-set thriller over Giron

Learner Tien emerged victorious from a grueling five-set battle against compatriot Marcos Giron, prevailing 7-6(2), 4-6, 3-6, 7-6(3), 6-2 in one of the day's most dramatic encounters. The 29th seed showed remarkable resilience after falling two sets to one behind, winning both fourth and fifth set tiebreaks with excellent pressure point execution. Tien's serving became increasingly effective as the match progressed, finishing with 21 aces despite 10 double faults. His mental strength was evident in the pressure statistics - winning 23 of 45 serve pressure points while capitalizing on 18 of 42 return pressure opportunities. The victory showcased Tien's improved fitness and five-set experience as he advanced to face a second-round challenge.

Second-round action continues Tuesday with several seeded players looking to join Monday's qualifiers in the round of 64.