Brazilian 18-year-old Joao Fonseca is the ATP Next Gen Finals champion after coming from a set down to dispatch American prospect Learner Tien, 19, in Jeddah, Saudi Arabia. Having saved a set point in the second-set tiebreak before winning it 10-8,

Brazilian teen sensation Joao Fonseca secured the biggest payday of his career, after going undefeated at the Next Gen ATP Finals in Jeddah.

Brazilian Joao Fonseca, 18, beats Learner Tien in four sets to be crowned the second- youngest winner of the Next Gen ATP Finals title in Jeddah.

Brazilian teenager Joao Fonseca is hoping to follow in the footsteps of his idol and world number one Jannik Sinner by winning the Next Gen ATP Finals title in Sunday's final at Jeddah, Saudi Arabia.

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Brazilian teenager Joao Fonseca said his ATP Next Gen Finals triumph in Jeddah on Sunday had left him dreaming of emulating Jannik Sinner and Carlos Alcaraz by becoming world number one. The 18-year-old from Rio de Janeiro lit up the tournament for players aged 20 and under,