(Instagram)San Francisco 49ers wide receiver Michael Crabtree had surgery on Wednesday to fix the Achilles tendon he tore during one of the team's OTAs. But while 49ers fans may be depressed over the news, Crabtree sent out the above message using his Instagram account to put them in a more optimistic mood .

Like the Terminator, Crabtree says he will be back.

When interviewing UFC president Dana White after fights, media usually want to know about title fight opportunities, implications of wins or losses, and where the UFC is headed next. Press conferences rarely present opportunities to get White to talk about who would win in a fight between him and UFC chairman Lorenzo Fertitta or White's music preferences. On "UFC Tonight," Kenny Florian and Chael Sonnen asked White those very questions. They even got him to sing on what White called "the most embarrassing interview ever."

(Getty)

In an interview with Newsday, former UFC champ Matt Serra said he is walking away from fighting. He wouldn't quite say the retirement word, but his last fight was in September of 2010. Blood clots have affected his health, and he doesn't want to be an aging fighter.

"An aging fighter?" Serra said. "You know, it's like an aging stripper, but not as funny. Not a lot of people want to see that."

He should also consider walking away from interviews after delivering that choice line. How will he ever top it? His candor in interviews always made Serra a fun person to cover.

Serra finishes with a record of 11-7, but will be most remembered for being one of the two men who beat UFC welterweight champion Georges St-Pierre. At UFC 69, Serra fought the perfect fight against GSP. He was aggressive and won with a TKO in the first round. Serra surrendered the belt back to GSP in their next bout, but his legacy was set. He had taken out the king.

Outside of his own fight career, Serra has touched the MMA world by being one of its teachers and advocates. He has two BJJ schools on Long Island, and has coached several UFC fighters, including UFC middleweight contender Chris Weidman.

Thanks for the memories, Matt.

(WESH)Early Wednesday morning, an FBI agent shot and killed someone they were questioning for his connections with the Boston Marathon bombers. Ibragim Todashev, the suspect, was an MMA fighter with a 1-0 professional record.

Todashev, who was reportedly a friend of deceased bomber Tamerlan Tsarnaev, fought in July of 2012. He submitted Bradford May with a guillotine in the first round of their bout at Real Fighting Championships in Florida.

Khusen Taramov, a friend of Todashev's, said that Tsarnaev and Todashev trained together in Boston. Tsarnaev trained and competed as a boxer.

"He used to talk on the phone with him (Tsarnaev)," said Taramov. "They talked last time a month ago. After the bombing, I couldn't believe it."

Todashev was reportedly being questioned about a triple-murder in Massachusetts in September of 2011. The FBI said in a statement Todashev posed an imminent threat to the agent.

Romance isn't normally what you think of when you think of Brazilian jiu-jitsu, but it happened for Justin Saikaley, a BJJ student in Canada. He was grappling with his girlfriend when he found the perfect time to pop the question with the help of some friends. Most men don't propose from the triangle choke, but it clearly works for these two. Best wishes to them both.

Thanks, MMA Fighting.

(Getty)Rumors began to swirl on Friday that UFC men's bantamweight interim champion Renan Barao was injured and out of his UFC 161 main event bout against Eddie Wineland. The UFC confirmed the news today, and promoted Dan Henderson's bout with Rashad Evans to the main event.

Both fighters are former champions who are coming off losses. Evans, who was once the UFC light heavyweight champ, loss to Antonio Rogerio Nogueira and Jon Jones in his last two fights. One-time Strikeforce light heavyweight champion Henderson lost to Lyoto Machida at UFC 157. With their fight happening in just a few weeks, the bout will be three rounds instead of the usual five for main events.

Barao's injury means that both champions of the UFC's men's bantamweight division are now injured. Dominick Cruz hasn't fought since October of 2011 due to knee injuries. If Barao can't return soon, will there be an interim interim belt?

UFC president Dana White put out his first video blog for UFC 160, and it's a behind the scenes look at the UFC's last pay-per-view event. The moments not to miss:

-- Bryan Caraway and Pat Healy discussing Healy's submission. Caraway, who had the only other submission win at UFC 159, said he was cheering for Healy to win by a knockout, not a submission, so that the Submission of the Night bonus would be Caraway's. The strange thing is Caraway did end up with the bonus because Healy's win was overturned by a failed drug test.

-- Michael Bisping yelling, "[Expletive] you guys!" to no one in particular

-- During warm-ups, Chael Sonnen showed off acrobatic skill. After losing to Jon Jones, he still showed a side that doesn't come through when he's trash talking to sell a fight.

Will he hold onto this belt? (Getty)UFC 160 is Saturday in Las Vegas, and we want to know how you think it will go down. Give us your picks and we'll run some of them here on Cagewriter. Here's how to do it. Check out the Cagewriter Facebook page to vote on a winner. Tell us why you think your pick will win in the comments of the poll, and some picks will run here on Friday. Click on each fight for its poll:

Cain Velasquez vs. Antonio Silva
Junior dos Santos vs. Mark Hunt
James Te Huna vs. Glover Teixeira
T.J. Grant vs. Gray Maynard
Donald Cerrone vs. KJ Noons

As the poet Pitbull said, let's have a real good time.