Topping the bill on Saturday night in Ciudad Nezahualcóyotl, Zulina Muñoz of San Vicente Chicoloapan and Jessica Trejo of Querétero produced a battle that, according to Box Noticias, caused the Arena Azteca Budokan to "erupt with excitement". Zulina's brother was also fighting, on the undercard (result not known), as were Gabriela “Pelusa” González and Clara Pérez at flyweight (González won that one on points and remains undefeated after 6 fights), but it was the 19-year-old nurse, who already holds the NABF championship and stands on the threshold of an international career, that everyone had come to see. "I absolutely must win my next two fights," she told Jesús López back in September, meaning this and the one in Tijuana she's been offered by Nacho Huízar. The talk then was of Vegas or a crack at the world title.

Whether "beautiful" (Esto), "beautiful and lethal" (Box Latino), "beautiful and destructive" (Box Latino again) or "beautiful and devastating" (Box Noticias), Zulina Muñoz is certainly useful with her fists. Boxrec credited her coming into this fight with 9 KOs in 10 outings; according to Box Noticias it was 11 in 12 – which it updated to 12 in 13 when the referee finished counting to 10 over the luckless Jessica Trejo.

According to the report, Zulina "triturated" her.

I had to look that one up. It means "to reduce to fine particles or powder by rubbing, bruising, pounding, crushing, or grinding"; and I have to say, if Zulina really did do all those things – which are precisely the sorts of things referees are there to prevent – I shall not be sending her a Christmas card nor will I vote for her as Sportswoman of the Year. But I suspect this is what we English call a 'metaphor', and that all she in fact did was spoil the poor girl's evening.

Box Noticias speculates that she was in a hurry to get to bed. Fighting in her home state, in front of her own supporters, Muñoz, it tells us,  "went flat out from the opening bell". The struggle was brief but cathartic. At some point in the first round (the exact time isn't given), Zulina got through with a combination, followed by a right cross that caught Trejo on the left eye.

And that was it. Her knees wobbled and La Loba ("the She-Wolf") went for the kill: a murderous flurry culminating in an uppercut with the right hand and a precision left to the jaw.

Whereupon the girl from Querétero hit the canvas; which wasn't at all what she'd been planning to hit when she left the changing room; but better, I suppose, than hitting nothing at all.

 Update: we do now know the time: Muñoz by KO 1 minute and 2 secs into the first round.

 (Sources: Esto, Box Latino, Yahoo Mexico, Box Noticias)