It was indeed an exciting match at All England 2020. It was unfortunate that in the decider the umpire called against LZJ at 19-19. That was clearly a desperate shot from Exelsen and because it was a 50-50, the call should not be made. That was a biased call in my opinion. LZJ should improve on his overhead cross smash and not rely on the awkward reverse slice drop. Exelsen baited him to hit different shots from his deep left back court, and LZJ shots was predictable, often reverse slice drop or clear and Exelsen was ready for the smash down the line. I think if LZJ gets the overhead cross smash right, there is no one he cannot beat. Another skill he could do more is hold and change direction and I absolutely think he can do is as he has the size to cover the court well and able to get to any spot quickly, and that should allow him ample of time to hold and change. Perhaps learn a few tricks from Tai TsuYing.