Two of the top seeds crashed to early exits as the Australian Open boys’ singles first round got underway on Saturday.
Third seed Johan Sebastien Tatlot was the highest-ranked casualty, eliminated in three sets by Slovakian Martin Blasko.
Blasko claimed the opening set, but failed to win a game in the second as the 17-year-old Frenchman emphatically gained the ascendancy on Court 11. But 18-year-old Blasko bounced back to complete a 6-4 0-6 6-4 first round victory.
Italian sixth seed Filippo Baldi was another to fall on the opening day of the boys’ event, losing in two tight sets against Spain’s Jaume Antoni Munar Clar.
Munar Clar won 7-6(2) 7-6(9) to advance to a second-round meeting with Australian Harry Bourchier.
Bourchier won through 6-3 6-3 against India’s Sumit Nagal on Court 11. The 17-year-old’s first serve was the key, winning 75 per cent of points on first serve while sending down five aces.
Joining Bourchier in the second round are fellow Australians Akiria Santilln, Bradley Mousley and Marc Polmans.
Australian 16-year-old Jake Delaney was not so fortunate, falling in straight sets to Russian No.10 seed Andrey Rublev.
Of the top seeds in action on Saturday, fifth seeded American Michael Mmoh was the highest-ranked to win.
Mmoh defeated Sweden’s Daniel Windahl 6-4 6-4 on Court 10 to advance to the second round.
First seed Alexander Zverev, second seed Stefan Kozloz, and fourth seed Roman Safiulin are in action on Sunday.
Meanwhile, the girls’ singles first round saw No.4 seed Elizaveta Kulichkova cruise into the second round with a 6-2 6-0 win over Wushuang Zheng.
Russian Kulichkova took just over an hour to complete the win, breaking serve on five occasions in an impressive display.
Ivana Jorovic also had an easy passage to the second round, the second seed beating Australia’s Michelle Pits 6-2 6-3.
Third seed Anhelina Kalinina defeated Siqa Cao in straight sets after surviving a second-set tie-break.
Girls’ 13th seed Sara Tomic made an exit in the opening round, defeated by Thailand’s Kamonwan Buayam 7-5 6-2.
After falling in the first round of qualifying for the women’s main draw, the 15-year-old sister of Bernard Tomic pushed her opponent in 53-minute first set before being brushed aside in the second.
The first round of junior matches will conclude on Sunday.