I am looking for a Quinntana story where Quinn(ton) is a male underground boxer , his main opponent / enemy is Scorpion. Santana is an ex athlete (had something to do with running), she broke her knee-cap (if I were not mistaken). Santana is Quinn's physical therapist. The last chapter was about Quinn found out that Santana had kissed Scorpion's tattoo (which is a scorpion), then when the time came for tournament, Quinnton let Scorpion beat the hell out of him.
I really want to read that story again and couldn't find it. Anyone who knows the title or the author of the story, please kindly help. Thank you :-)