Teenager João Fonseca won his first ATP Tour title at the Argentina Open on Sunday, announcing himself as one of tennis’ brightest talents.

Brazilian 18-year-old Joao Fonseca defeated Argentine fifth seed Francisco Cerundolo 6-4, 7-6 (1) to win his first ATP Tour title at the IEB+ Argentina Open on Sunday in Buenos Aires. Fonseca is the youngest South American player to win a tournament in the ATP Tour era,

Rising tennis star João Fonseca has finished what he called “an unbelievable week” with a straight sets victory over Francisco Cerúndolo in the final of the Argentina Open to claim his first tour-level title.

Laslo Djere stood between Fonseca and his first ATP final. The Brazilian overcame another stern test and claimed a 7-6, 5-7, 6-1 win. Joao played well in the tie break to build an early advantage. The young gun broke in the eighth game of the second set for 5-3.

Brazilian 18-year-old Joao Fonseca saved two match points and pushed past Argentina's Mariano Navone 3-6, 6-4, 7-5 in the quarterfinals of the IEB+ Argentina Open on Friday in Buenos Aires. The match lasted two hours and 54 minutes and saw home favorite Navone serve for the match in the 10th game of the third set.

Teenage tennis sensation João Fonseca frustrated his home fans at the Rio Open in a first-round loss two days after winning his first ATP title

Tennis legend Boris Becker is understandably confused by the recordkeeping associated with Joao Fonseca's Argentina Open victory.

Joao Fonseca described his week as "unbelievable" after becoming the youngest South American to win an ATP Tour singles title when he captured the trophy at the Buenos Aires Open.