Urgot lock on vfx?

From what I could tell from the videos on his announcement page, there doesn't seem to be a visual effect to indicate when an enemy champion is locked onto. It doesn't seem like locking on is quite as integral to extended trades as it was with his previous Q, but i still think it would be useful to know whether or not you are locked onto a champion as it seems like his W is a major source of damage and if you use it without knowing that you haven't locked on to the intended target it can open you up to some punishment. That may be intentional, but i feel like omitting clarity in favor of counter-play space is unfair to whoever is playing Urgot.

I do realize that the means of locking on to a target are limited, but the hectic nature of teamfights can easily lead to confusion and just a simple visual for Urgot and the target (kinda like how Kha'zix's isolation effects work) would definitely help clear that up. If anybody has any insight as to whether or not this is an intentional design, or really anything to say on the matter I'd love to hear it.