(Shirtless Saturdays just aren’t going to be the same around the gym without Nick.)

MMAFighting.com’s Ariel Helwani caught up with UFC on Fox 3 headliner Nate Diaz today at the press conference today in New York for the New Jersey event and the lightweight contender revealed that he thinks his brother Nick’s days in the Octagon are over.

“Triathlon season is starting so he’s just training, getting in shape for that. [He's] concentrating on being in shape, being healthy, helping me out and coaching me for my fights. Right now, I don’t think [we'll ever see him back]. He’s just big on, like I said, just being healthy and staying in shape and not worrying about [fighting] and thinking about it. I think he’s retired. He hasn’t been into this whole fighting thing for some time, you know? Since everything that goes on with the funny wins and losses — for not just him — for me and for people on our team. I think he’s just relaxed right now and he’s pretty set on his retirement. I kind of agree with him, you know? It’s hard to say, especially when it’s somebody like my brother,” Nate explained.

Check out the video and the rest of what Nate had to say about the situation after the jump.

(“Tell me you aren’t going to miss this shit, bro.”)

Our friends at Kimura.se caught up with Jake Shields ahead of his UFC 144 fight with Yoshihiro Akiyama Saturday in Japan and they asked the Team Cesar Gracie fighter whether or not he thinks his teammate Nick Diaz will follow through on his plan to retire.

(“See, where I come from bitching like that will get you backhanded.”)

Well, it didn’t take long for Team Cesar Gracie to return fire on BJ Penn after “The Prodigy” launched a random Twitter attack on Nick Diaz yesterday.

Here’s what they had to say about Penn’s latest bitchfest via a posting made today on Cesar’s official blog, GracieFighter.com.

Say It Ain’t So BJ…

JANUARY 6, 2012

BJ Penn has apparently not come to terms with the beating he received at the hands of Nick Diaz. Below is his latest posting on his Twitter account:

@nickdiaz209 Look how much bigger you are in this pic..I thought you were gonna scrap from the beginning homie? What was that coward fence holding strategy to tire out the smaller man? Street fighter my ass! I made you fight like glass jaw @jonfitchdotnet poser!
I’ll be ready for that weak bs next time we fight!

At some point it is up to those around you to protect you from yourself. To take you aside and let you know you are wrong and help save you from your folly. Unfortunately for Penn he is surrounded by “Yes Men” that are unwilling to do that. The outcome will be predictable, resulting in a fighter that will never push himself to the fullest and will always have excuses for his losses.