Cassandra Cain vs Mercury

Mercury of the X-men takes on Cassandra in a close-quarters brawl.

Who wins?

With a name like Mercury, I'm guessing Cass is facing down a super speedster.

In which case, she loses horribly.

And, I see her body is living Mercury instead.. v_V;

So, question: Can she be knocked out? Does she have human level stats, like Colossus or Iceman does?

If the answer is yes, Cass is probably quick enough to flash KO her (And should hit hard enough to do the job, considering she's capable of caving in a prison wall with a kick..)

If the answer is no, she loses.

There is nothing Cassandra can really do to Cessily in a brawl.

Mercury wins.