nope, the courts he played on didnt have a serve clocker thing.
what's up with his shoulder? after his match with auckland in LA qualies, he had his shoulder treated too... well it was just iced and when i asked him about it, he said it was sore and thats it. hope that doesnt affect him in any future matches.
no idea abt the shoulders. I wouldn't think too much of it, its common for tennis pros esp if their body is still developing.
btw, the short vid you mentioned before. does it show Kei's game? If so, can you share it here? thankz