At least, that's what appears to be happening.
Late Sunday night, Diaz tweeted a picture of himself sitting on the sidewalk with police cruisers in the background.
Diaz (or whoever has access to his Twitter account) has since deleted the original tweet, but it has nonetheless made its rounds on the Internet. Here is the Twitter message as it originally looked prior to deletion:
Fuck they got us:( pic.twitter.com/HdUH0DD1Wk
At the moment, the original picture is still in Twitter's server archive.
According to the timestamp in the image, Diaz originally posted the photo to his Twitter account at 10:58 p.m. PT on March 17, 2013.
Exactly what this means isn't certain, but Diaz most recently turned heads at the UFC 158 post-fight press conference by stating that he had "never" paid taxes in his life:
I've never paid taxes in my life and I'll probably go to jail. No one wants to hear about that, no one wants to hear about that kind of talk or what's really going on with me. I might as well just be a kid.
If true, that would indicate that Diaz has possibly been guilty of years of tax avoidance or tax evasion as early as 2001—the year that Diaz turned 18 years old and started his professional fighting career. What's unclear is whether or not Diaz owes excess federal and state taxes, or if he has simply not filed any taxes during the past eight years.
Diaz's Twitter has not since been updated, so it's currently unknown if he has indeed been arrested or not, or if the photo itself was a prank. If Diaz has actually been detained by police, it's additionally not certain whether or not this incident is related in any way to his self-professed tax troubles.
This event takes place just a day after UFC 158, where Diaz competed in the main event against welterweight champion Georges St-Pierre.
Diaz lost a one-sided unanimous decision to St-Pierre, marking his second straight loss after an earlier defeat in February 2012 to former interim champion Carlos Condit. Both matches were notably separated by a one-year suspension of Diaz's fight license due to a failed drug test (via MMA Junkie) for marijuana metabolites.
Diaz's pictures include the following text:
Yes i am on the sidewalk :/
We lost Alix and Vic
Apparently, the situation is continuing to develop, although Diaz has not yet stated his immediate location or the reason behind the situation.
Sergeant David Moranz of the Citrus Heights Police Department confirmed to Bleacher Report on Monday after an initial report from TMZ.com, that Diaz was a passenger in a car that was stopped around [11 p.m.] PT after it traveled the wrong way down a one-way street. Moranz stated that Diaz was not the driver of the vehicle, only a passenger.
The driver of the car had his license checked and an outstanding misdemeanor warrant was found on his record and he was arrested at the scene. A second occupant in the card was found to have concentrated cannabis in their possession, and police also arrested that person as well.
Diaz however was not in any trouble and had no past incidents on his record that caused police to detain him any further.
According to the police, Diaz was very cooperative and complicit with their requests while they conducted their investigation, and he was released at the scene after the accompanying arrests were made.
As noted in the report, Citrus Heights, California is roughly an hour north of Stockton, where Diaz lives and trains. Diaz has not updated his Twitter account since the incident, but all first-hand sources are indicating that the UFC welterweight contender will be fine for the time being.
McKinley Noble is an MMA conspiracy theorist and tech writer. His work has appeared in GamePro, Macworld, PC World, 1UP, NVision, The Los Angeles Times, FightFans Radio, MMA Mania and Bleacher Report. Talk with him on Twitter.