I thought this was noteworthy enough to mention. In an interview at the AO, Roger Federer spoke highly of Fonseca, but this was particularly interesting: "I think he's more a little bit like me in that I think he needs a little bit more time to work on his game and know like, similar to Jannik as well, to know when to dial back and when to unload his shots and he's going to figure that out, obviously, and the sky's the limit. But honestly I think he's truly one of the guys who can compete for the biggest wins."
I don't want to read into this too much, but if Roger is correct, we shouldn't expect Joao to blast to the top this year (at 19-20) like Carlos or Rafa did at a similar age, but it might take him two or three years to fine-tune the mechanism and reach his prime level.
Look at Roger and Jannik. All three--Roger, Jannik, and Joao--were born in August, so it is easy to compare them age-wise. Joao is 19, turning 20 in August. He's exactly the same age that Roger was at the beginning of 2001, Jannik in 2021. Here's how they line up at the same age (beginning of 2001, 2021, 2026):
Roger: #29, 45 events, no titles, best Slam result: R16. Elo 1879.
Jannik: #37, 21 ATP events, 1 title (250), best Slam result: QF. Elo 1967.
Joao: #24, 24 ATP events, two titles (250, 500), best Slam result: R32. Elo 1932.
Elo is Tennis Abstract's version.
Anyhow, they're all relatively close - especially in rankings. I think both Joao and Jannik were a bit ahead of Roger at the same point. Jannik was ranked lower, but his early career was muddled by covid. His Elo was higher and he had been better overall. Joao is also a bit ahead - a higher rank in a lot less events, plus two titles already.
By the end of the equivalent of that season:
Jannik (end of 2021): #10, four titles (500, 3x 250), two Slam R16s. Elo 1995.
Roger (end of 2001): #13, first title (250), two Slam QFs. Elo 1961.
Jannik actually had an off year the next year (2022), then jumped in 2023, especially towards the end when he won his first Masters. He skyrocketed in 2024.
Roger continued to make small gains in 2002, won his first Masters, but didn't go further than the R16 of Slams. He jumped in 2003, winning his first GS and finishing #2 then, like Jannik, skyrocketed the following year in 2004.
In other words, Roger and Jannik followed a similar pattern, which I pointed out back in 2023, just before he jumped. If Joao follows a similar pattern, then we're likely to see:
2026: Steady improvement, likely some titles though unlikely a big title. Going deeper all around, finishing #10-15.
2027: Continued gains, possibly a big title, top 10 finish.
2028: Breakout - big title no later than this, possibly a Slam.
2029: Reaches prime level; Slam no later than this.
Meaning, neither won a big title in the equivalent season to Joao's 2026; Roger won his first Masters in "2027," Jannik his first in "2028" - and both were great by "2029."
Who knows how it plays out. I think the main point is that he's likely to have a slowish arc to reach his prime - more like Roger/Jannik than Rafa/Carlos. I suspect he might go a bit faster than Roger/Jannik, but still far closer to them than Rafa/Carlos. Meaning, my guess is that's he's half a year or a year ahead of the above trajectory...but we'll see.
Bottom line: Don't be worried if he doesn't win a big title or go deep in a Slam. I think we should look for overall improvements - deeper runs, more 250s/500s, and a finish around #10. If he wins a big title, great, but chances are he's going to need to bake for at least a couple more years (2026-27) before reaching his prime level. Both Roger and Jannik started really showing it around their 22nd birthday - late 2023 for Jannik, late 2003 for Roger. For Joao, that's late 2028. Again, I think he's up to about a year ahead, but that's still late 2027, with a full breakout in 2028.
Bank it, folks.
