If you didnt know about this before, you will know about it now, but a well timed melee knockback can interrupt 100% of their momentum
check this post for a more in depth explanation
i think its kind of stupid ngl… i guess it punishes you if youre too close to someone, but i still think its ridiculous that wrecking ball out of all things is also a victim of this
try it at some point, it is incredibly effective, especially if you play someone hyper mobile like tracer