I think this is an excellent match up as Mominov is slowly progressing up the Welterweight ranks while Ruiz attempts to get his career back on track after a KO loss.
I think these two are fairly even in terms of power and skill though Ruiz hasn’t fought for over a year while Mominov has been active.

I think this will be a close fight especially over eight rounds and I think it likely ends in a draw though if Mominov stuns and KO’s the rusty Ruiz early I wouldn’t be surprised.