Looks like a pull up to me.
When he dunked: https://imgur.com/PfuweLs
When he did his pull up: https://imgur.com/5JGiTFu
Not saying it should be a tech, just pointing out he definitely did a pull up.
Looks like a pull up to me.
When he dunked: https://imgur.com/PfuweLs
When he did his pull up: https://imgur.com/5JGiTFu
Not saying it should be a tech, just pointing out he definitely did a pull up.