The shaking seemed quite real, but considering that they were playing soccer, he may have gotten ‘crowned’ on the noggin at some specific lobe or area. Meaning it may be a brain injury brought on by concussion. We’ll never know.
The video looked too old and fuzzy to be Covid related.
I guess these same people who have seen those videos of newborns shaking like that after the mother had been vaxed think those infsnts are also faking it.