Chris Weidman punches Alessio Sakara during their middleweight fight at...

Chris Weidman punches Alessio Sakara during their middleweight fight at the UFC Live on Versus 3 event at the KFC Yum! Center. (March 3, 2011) Credit: Getty Images

He and his wife have the envelope, but they haven't opened it yet. The only way Chris and Marivi Weidman will find out the sex of their second child is when they cut into the celebratory cake in front of family and friends this weekend.

If the cake is pink, they'll be having a second daughter. If it's blue, it's a boy. As exciting as learning more about his second entrance into fatherhood is, Weidman's appetite changed Tuesday night.

"I'm not gonna be able to eat the cake, but I can look at it," said the mixed martial arts fighter from Baldwin.

That's because Weidman on Tuesday night accepted a UFC fight on 11 days' notice, and he needs to weigh 186 pounds in 10 days. So instead of eating a sweet dessert, he'll be trimming about 15-18 pounds to fight Demian Maia at UFC on Fox 2 in Chicago on Jan. 28. The short notice came about after Mark Munoz was injured and Michael Bisping replaced him in the co-main event against Chael Sonnen. Maia (15-3) was originally schedueled to fight Bisping as one of the three bouts airing live on Fox. Light heavyweights Rashad Evans and Phil Davis fight in the main event.

"I thought they were going to pull Maia off this Fox card and we'd fight later," Weidman said.

There was some hesitation by Weidman (7-0, 3-0 UFC) to accept a fight against one of the top five middleweights in the UFC in less than two weeks, but that eroded quickly.

"As I was thinking about fighting Maia, I was getting excited about it and started to get pumped up," said Weidman, who had just finished his morning run and was en route to Ray Longo MMA in Garden City to train. "It makes me tougher, no matter what, win lose or draw. I'm a risk taker, and I love rising to the occasion especially on short notice. It's a great opportunity to showcase my skills and show the world I belong in the upper echelon."

Weidman last fought in November when he submitted Tom Lawlor in the first round at UFC 139 in San Jose, Calif. Despite not being on the pay-per-view card, it was with that fight where Weidman elevated his profile. Lawlor is a well-respected fighter and Weidman submitted him quickly.

A two-time All-American wrestler at both Nassau CC and Hofstra, Weidman has become accustomed to cramming training into a small window of time. In his UFC debut last March against Alessio Sakara, Weidman had just 17 days to prepare for the veteran fighter and elite boxer. Weidman beat Sakara by unanimous decision.

Amid the adrenaline rush of his next UFC fight and the excitement of expecting a second child, Weidman, 27, has had to deal with sadness as well. Last Sunday, his uncle, Fred Weidman, passed away at age 67.

"He was tough as nails," Weidman said. "I look forward to winning this fight just so I can get on the microphone and talk about him."

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