Source: NFL to investigate Aldon Smith in wake of online video

Will Aldon Smith ever play again in the NFL? (1:41)

Ed Werder and Damien Woody break down what is next for Aldon Smith since the NFL is set to investigate a video involving a hand-rolled cigarette. (1:41)

The NFL will investigate whether Oakland Raiders linebacker Aldon Smith has violated the protocols required of a suspended player seeking reinstatement to the league following a violation of its substance abuse policy, a league source told ESPN's Ed Werder.

The league will conduct the investigation following the circulation of an online video that shows an unidentified man and woman talking about a hand-rolled cigarette.

The video is archived in a Periscope account that Smith has used on multiple occasions over the past two months.

Neither Smith nor the woman appear in the video, titled "Fire up session," although Smith appears in several other videos under the Periscope account "ravenga."

At one point in the video, the woman tells the man that he "shouldn't even be posting that" and that he is "hella stupid" as the man holds the lit cigarette.

The video cuts off immediately after the man says: "They don't know it's me. It's not like I put 'Aldon Smith.'"

In a tweet posted Monday afternoon, Smith seemed to imply that it isn't him in the video.

Smith currently is serving a yearlong suspension that was handed down in November when he violated the NFL's substance abuse policy. He will be eligible to apply for reinstatement in September, 60 days before the one-year anniversary of the suspension.

According to the substance abuse policy, any player seeking reinstatement from Smith's level of suspension must demonstrate to the league that he has abstained from any "substances of abuse" during the period of his ban.

Smith's application for reinstatement also must include any information regarding his "involvement with any substances of abuse-related incidents."

The No. 7 pick of the 2011 draft by the San Francisco 49ers, Smith spent time in rehab in 2013 and served a nine-game suspension in 2014. He was cut by the Niners during training camp last summer after his fifth arrest since coming into the league.

In September, Smith pleaded not guilty to misdemeanor counts of hit-and-run, drunken driving and vandalism, charges that stemmed from the alleged Aug. 6 incident.

After signing with the Raiders, Smith finished last season with 3.5 sacks in nine games, including seven starts. He re-signed with Oakland this past April, reportedly agreeing to a two-year deal.

Information from The Associated Press was used in this report.