If Tomic embarrassed Nadal, what did Nadal do to top players at 18?
Depends on what Tomic accomplishes in his career, imo. Nadal is extremely talented and was winning slams and beating the then world #1 as a teenager. It wasn't embarrassing for the players he beat per se, because Rafa was obviously no fluke teen wonder, but actually a top class player, which he's shown in the past couple years. I'd say it's more embarrassing to be pushed by Tomic if he ends up being another Donald Young, hyped up young player who has a couple big wins but never makes a major impact on the tour. However, if Tomic makes the leap in the next year and becomes a top ten player and starts winning, or at least actively challenging for slams, then it won't be so embarrassing.