Fit Fix: Part of Ronda Rousey "Died" in Holm Loss, Sister Says

"She Wasn't Invincible": When Ronda Rousey was knocked out by Holly Holm in that fateful fight in Australia this fall, a part of her "died," her sister Maria Burns Ortiz writes in a Vice Sports column titled "The Year My Sis Ronda Rousey Became a Superstar." Burn Ortiz defends Rousey in the emotional, intimate piece, which offers insight into the turbulent private life of Rousey and her family as they have navigated her—and, to some degree, their—rise to international superstardom. "I saw someone I cared about have her soul crushed," Burns Ortiz writes. "The world watched Ronda fall, but I have had the opportunity to watch her get back up." [Vice]

Punch Out!: A late entry into the "Vine of the Year" contest, courtesy of Mike Tyson, a hoverboard, and Vine user Ry Ry:

Take That, Jazz: Andrew Wiggins, doing his thing.

Define "Comedian": President Obama is the first guest on the 7th season of Jerry Seinfeld's Comedians in Cars Getting Coffee, in which the pair get a cuppa joe and go for a spin in a '63 Stingray. Seinfeld's toughest question: shave before you work out, or after?

Well That's One Way to Get Abs: Director Nicholas Stoller dropped a first image from Neighbors 2, featuring a shirtless Zac Efron (naturally) and an also shirtless Seth Rogen, who has literally drawn on his midesction muscles. (For the record, we'd recommend our six-week program to get a six-pack.)

Exclusive: @ZacEfron and @SethRogen flex their muscles in this #Neighbors2 first look: https://t.co/m0yIlbNn5fpic.twitter.com/T0kmEEkZTK

— Entertainment Weekly (@EW) December 30, 2015

No Longer a Gym Excuse: The next time you drag your sorry ass to the gym and someone says you look kinda beat, DO NOT tell them you're "just there so you won't get fined." Marshawn Lynch has trademarked that phrase. And if you say it, Marshawn Lynch will burst through the cinderblock wall of your gym and truck-stick you out of the squat rack. You have been warned. [CBS Sports]