As the sun started to go down below the horizon and darkness seemed to envelop the sky, Yuki yawned, stretching his stiff body after such a long day. While today's training was not as physical, the amount of technical knowledge Sekine thought today was insane, making the exhaustion more to his brain than to his body.
There were so many things in the game that Yuki thought it was natural but he could make it better by changing his approach, like how to use his hips to generate more power when spiking the ball or something like that. This knowledge was new to him, that the explanation kept spinning around his head. It frustrated him more when the glasses boy noticed he knew what he should do, but his body couldn't keep up with the knowledge he just received. It would take time for his muscles to remember what to do naturally in a game.