Nadal, Barty, Kenin off to winning starts; ailing Azarenka stunned in Australian Open

Sofia Kenin  has the most unusual serve I have ever seen.    She looks down when she tosses the ball in the air and visually picks it up when it is falling down.  It’s been called a “no look toss”. Yet, she has done so well.  I guess technique matters little if the outcome is winning.  I watched her in the Fed Cup in late 2019 and she covers so much ground. But this is expected from one of the best.