Josh Gordon's legal team will argue that his positive marijuana test was caused from secondhand smoke.

Gordon is appealing the NFL's imposition of a yearlong suspension for a positive test for marijuana.

Gordon's legal team will argue that the positive tests are so marginal that they show uncertainty as to whether the test results were truly positive, and even if so, were the result of exposure to secondhand smoke, according to sources familiar with the case.

Gordon's "A" sample tested at 16 nanograms per milliliter, a bare one nanogram per milliliter above the 15-nanogram-per-milliliter threshold, while Gordon's "B" sample -- which should theoretically be consistent with the "A" sample, as it comes from the exact same specimen -- tested at 13.63 ng/ml, lower than the threshold.

With both samples coming from the same specimen test, the results should be consistent. 

Aldon Smith said that he has stayed completely sober since September when he was arrested and charged with drunken driving for the second time since January 2012.

"I've been able to maintain, and it's going good," Smith told reporters when asked about his sobriety. "I'm in the best shape I've been in coming into a camp, and my mind is probably in the best spot it's been in, so I'm feeling great."

Smith voluntarily missed five games last season when he entered a substance-abuse treatment center.

Smith will meet with Roger Goodell in the near future.

In October in London, Goodell told reporters that the league might consider Smith's aggressive approach to his problem could be considered when potential discipline would be addressed.

"That's in their hands," 49ers coach Jim Harbaugh said of a potential NFL suspension. "They will discipline if they feel he warrants it."

Smith was arrested for an alleged fake bomb threat at LAX and no charges were pressed.

Justin Blackmon is already under an indefinite NFL suspension and was arrested on Wednesday night for marijuana possession.

Blackmon was pulled over for a traffic violation according to Edmond, Oklahoma police. The call smelled like marijuana and they allegedly found the drugs.

"It's unfortunate news," Jaguars coach Gus Bradley said, via the AP. "We haven't had much contact with him. I'm just praying that he gets the help he needs. I'm just praying that he gets right."

Ray Rice has been suspended two games by the NFL for a domestic violence incident this past February in Atlantic City.

Rice allegedly struck his then-fiancée, casuing her to become unconscious.

Rice was able to avoid prosecution after being accepted into a pre-trial intervention program.

Rice will miss divisional games for the Baltimore Ravens against the Cincinnati Bengals and Pittsburgh Steelers.

Josh Gordon was arrested early on Saturday on suspicion of DWI while in Raleigh, North Carolina.

Gordon was driving while impaired and clocked going 50 mph in a 35 mph zone, police spokesman Jim Sughrue told NFL Media. He was arrested shortly before 3 a.m. ET and released on bond at approximately 6 a.m. Saturday.

"We are aware of the matter and are disappointed to learn of this situation," Cleveland Browns general manager Ray Farmer said in a statement. "We will comment further at the appropriate time."

Gordon was already awaiting work on his lengthy suspension for a positive drug test.

Gordon became one of the NFL's best wide receivers last season.

Rokevious Watkins has been suspended for four games for violating the NFL's substance abuse policy.

Watkins was a fifth-round draft pick for the Rams in 2012, and though he reportedly had a chance to win the starting left guard job his rookie season, he reported to training camp 16 pounds overweight and out of shape.

Watkins signed with the Kansas City Chiefs last season after he was cut by the Rams.

Dion Jordan has been suspended four games for violating the NFL's policy on performance enhancing substances.

Jordan, the No. 3 overall draft pick in 2013, recently said he had gained 17 pounds of muscle compared to last season, when he didn't get much playing time because there were concerns about his strength.

"We were disappointed to learn about Dion's suspension," Dolphins coach Joe Philbin said. "Dion has accepted responsibility for his actions and is committed to improving, both on and off the field, in preparation for the upcoming year."

Jordan's suspension hurts Miami's depth at defensive end.