Yes sure. But also under minimal pressure vs a bad opponent. The defending, the opponent and the pressure was not good enough for labelling him world class or Trez like or the best in the world or for buying his shirt.
Higuain had about the same amount of time on his goal as trezeguet's silver goal in 2002.
Its a pure striker goal, the kind that is executed so quickly before the defence can react, thanks the anticipation, positionning, finishing ability and speed of execution of the true class striker.
You can argue about the defence allowing the ball to get there on both goals, but the moment the pass goes to Higuain on both occasions, the pure striker will finish that chance without the defence able to do anything about it.
Just like trez, if Higuain gets to the ball in the box, you are finished. If he gets a clear shooting line from a realistic striking angle, you are finished.
When talking pure striking skills, Higuain and Trezeguet are both similar in that regard. The difference is that David pulled it of in the dawn of the greatest era of defending, while Gonzalo is doing it today.
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One thing people seemb to forget, with true worldclass clinical strikers, its about to prevent them from getting the ball close to the goal.
The moment Higuain got the ball on both goals, not a single defender or keeper would have prevented it from going in. But a different striker, could have very likely botched it. Especially the second one.