Interactive Forum July 2023 Jannik Sinner Serve

[jimlosaltos]

I also feel I have been frozen out. Stroke is very offended, super offended. For shizzle my nizzles. You want have Stroke to kick around much longer.

[jimlosaltos]

I have to note that I was posting on Jannik Sinner's serve in detail in the past year when he changed to platform but having been frozen out of the discussion here on the forum by the Big Three my comments got no traction, no air, no responses, no attention. Which is fine...and laughable.

I posted crediting you for that a while back and you said thanks. I was looking for a comparative video on YT of the before-and-after this am to double check just what you wrote here.

I trust Darren Cahill's coaching more than anyone and would LOVE to hear what he's up to.

[jimlosaltos]

Jim and JY: At the moment of impact on Jim's post #5 in this thread, if you dropped a plumb line from the center of racket face to the ground, can you guestimate how far into the court the plumb would drop? I am not fully appreciating the amount of sidebend and back arch needed, and where exactly on his toss arc contact was made. I also am having trouble appreciating the amount of external rotation needed when the shoulder angle appears to be about 90 degrees flexed while elbow is at 110 degrees in second 42 of the video.. I dont think even at birth I was that flexible! I know JY and Brian Gordon have discussed this, I just need to find it. Would be Sinner considered average or an outlier for ESR and back arch?

Sorry to be slow responding. I've been in ER all day with S.O.

I don't consider myself the expert to answer this but posting the photos was my way of asking the same question you pose.

The greatest ISR I've seen is John Isner. I've posted here, on TPN, images showing his hand so far rotated his palm faces straight up. That's, what 270 deg while Sinner, Fed el al are doing 180 deg? Are there benefits?

As for the back arch and "drop". I posted on TPN ages ago that Isner's ball impact (at Peak Isner) was four(4) feet into the court. FOUR FEET. John isn't serving, he's spiking overheads.

Jannik isn't doing that but the impact is way to the left of his head. Purpose? Result? Does this have a downside? Accuracy, repeatability.

I hope someone here will answer that

[stroke]

I also feel I have been frozen out. Stroke is very offended, super offended. For shizzle my nizzles. You won't have Stroke to kick around much longer.

[don_budge]

I noticed that in Halle...but didn't want to wake anybody up.

I have to note that I was posting on Jannik Sinner's serve in detail in the past year when he changed to platform but having been frozen out of the discussion here on the forum by the Big Three my comments got no traction, no air, no responses, no attention. Which is fine...and laughable.

[don_budge]

Unexpected ingredient to the discussion.

Just watched Sinner win the final set of his 6-2 6-2 6-2 first round victory at Wimbledon.

He was serving pin-point. J McEnroe was commentating. Didn't mention the change during the 3rd set but might have done earlier.

I'm left scratching my head. He sometimes seemed to me to be rushing his motion somewhat, the pinpoint added to the impression.

Is this a temporary fix for an injury problem? Have I missed something about it elsewhere?

regards
Rob

I noticed that in Halle...but didn't want to wake anybody up.

[stotty]

Unexpected ingredient to the discussion.

Just watched Sinner win the final set of his 6-2 6-2 6-2 first round victory at Wimbledon.

He was serving pin-point. J McEnroe was commentating. Didn't mention the change during the 3rd set but might have done earlier.

I'm left scratching my head. He sometimes seemed to me to be rushing his motion somewhat, the pinpoint added to the impression.

Is this a temporary fix for an injury problem? Have I missed something about it elsewhere?

regards
Rob

Well, that's interesting if he has reverted back to pin-point. Many players do revert back to pinpoint after trying platform for a while. I tried to find the match on replay but couldn't find it.

[dimbleby69]

Unexpected ingredient to the discussion.

Just watched Sinner win the final set of his 6-2 6-2 6-2 first round victory at Wimbledon.

He was serving pin-point. J McEnroe was commentating. Didn't mention the change during the 3rd set but might have done earlier.

I'm left scratching my head. He sometimes seemed to me to be rushing his motion somewhat, the pinpoint added to the impression.

Is this a temporary fix for an injury problem? Have I missed something about it elsewhere?

regards
Rob

[doctorhl]

Your beautiful still on post #10 also demonstrates that Sinner's ISR after contact is also pretty good?

[doctorhl]

Jim and JY: At the moment of impact on Jim's post #5 in this thread, if you dropped a plumb line from the center of racket face to the ground, can you guestimate how far into the court the plumb would drop? I am not fully appreciating the amount of sidebend and back arch needed, and where exactly on his toss arc contact was made. I also am having trouble appreciating the amount of external rotation needed when the shoulder angle appears to be about 90 degrees flexed while elbow is at 110 degrees in second 42 of the video.. I dont think even at birth I was that flexible! I know JY and Brian Gordon have discussed this, I just need to find it. Would be Sinner considered average or an outlier for ESR and back arch?

[jimlosaltos]

Since I'm avoiding chores as it hits 97 deg F outside here, let's litter TPN's servers with more bits.

The many fans of Internal Shoulder Rotation, and I know there are a lot of you here, should admire this one. What's striking to me is that Jannik gets to almost his full rotation while his racket is pointed so high, which tells me he turned his arm really fast.

It continues to rotate just a bit further after this but by then he's started "ulner flexion". I've never understood why some servers twist their forearm down severely while others, like Fed, I can't recall doing that all.

Caption: Sinner again from Indian Wells last March. This from a low res jpeg burst All. (c)jfawcette aka me.

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[jimlosaltos]

Ok clicking the centre of the image worked. Seems there's no end to your skills or energy when it comes to these things. I just love the video and its 'stop action' look. Sinner really drives up, doesn't he? And keeps his eyes glued to the ball.

And I do remote IT Support as well <g>. Glad to help -- and glad you like the vid.

[stotty]

Hmmm. Plays for me in Safari. There is a pause at the beginning to allow people to read the titles, but that's just a couple of seconds.

Retried a couple of times just now. There was a lack of response one time when I clicked the small "Arrow" to play. You might try clicking in the middle of the image, which has worked every time for me.

Ok clicking the centre of the image worked. Seems there's no end to your skills or energy when it comes to these things. I just love the video and its 'stop action' look. Sinner really drives up, doesn't he? And keeps his eyes glued to the ball.

[jimlosaltos]

I can't view the clip for some reason. The photos are super. He seems to have a very deep knee bend.

Hmmm. Plays for me in Safari. There is a pause at the beginning to allow people to read the titles, but that's just a couple of seconds.

Retried a couple of times just now. There was a lack of response one time when I clicked the small "Arrow" to play. You might try clicking in the middle of the image, which has worked every time for me.

[stotty]

I can't view the clip for some reason. The photos are super. He seems to have a very deep knee bend.