In the video Zhang showed his dribbling skills in front of a defense made up of several professional basketball players, and received a loud cheer from people watching on site.
The 13-year-old boy recently got wide attention from netizens (people who use the Internet) in China when a video of his excellent dribbling (带球) skills in a one-on-one situation was posted online.
They have to give so much thought and attention to the low-level mechanics of dribbling or fingering the keys or reading the music, that they are unable to give any thought to the thing that matters.