Martina Navratilova and Boris Becker unhappy with graphic produced as Joao Fonseca takes the title in Argentina

Joao Fonseca is undoubtedly the new star name on the ATP Tour, having just clinched his first title at the Argentina Open.

Fonseca was the youngest Brazilian man to reach an ATP final, where he overcame home favourite Francisco Cerundolo.

The 18-year-old produced a stunning Argentina Open final performance to defeat the fifth seed 6-4, 7-6(1).

Fonseca twice unsuccessfully served for the title as Cerundolo fought back, but the former ultimately emerged victorious on the clay courts in Buenos Aires.

He has now risen a huge 31 places to a career-high of 68 in the ATP rankings, having been ranked all the way down in 655th just one year ago.

Photo by Gabriel Sotelo/NurPhoto via Getty Images

Martina Navratilova and Boris Becker unhappy with Joao Fonseca graphic

Boris Becker praised Fonseca after he clinched the title, but a graphic has been produced on social media that has seemingly angered the German and indeed his fellow legend Martina Navratilova.

Aged 18 years and five months, Fonseca was included in an exclusive list of the youngest ATP finalists since 2000 by Tennis TV.

READ MORE: Andy Murray names the player he cannot wait to see Joao Fonseca face on the ATP Tour after he reaches the final in Argentina

Taking exception to the date, Becker reacted with the message: “Really?!?” before questioning: “So before the year 2000 we didn’t play tennis?” as a bemused Navratilova replied: “Apparently not.”

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Another legend in Chris Evert then responded: “We did the best with the information, technology, (wood rackets!) training that was out there. We were champions in our era. Enough said!”

Joao Fonseca immediately set on Rio Open after Argentina Open title

Becker certainly knows about winning young more than most, with the German still Wimbledon’s youngest male champion.

He won six Grand Slam titles during his superb career, the first of which came in 1985 at the All England Club when he was just 17.

READ MORE: Carlos Alcaraz has four word reaction after Joao Fonseca wins his first ATP title and says what he wants to happen soon

Fonseca meanwhile is only 18, but has already proven his worth as one of the most exciting players across men’s and women’s tennis.

The teenager will still be celebrating his Argentina Open success, but Fonseca must quickly turn his focus to the Rio Open.

He meets Alexandre Muller in the round of 32 of his home tournament, with the Brazilian certain to garner a huge following after his fantastic triumph in Argentina.

Australian Open runner-up Alexander Zverev is the top seed in Rio, with Cerundolo also involved after losing the Argentina Open final.

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