Reshad Jones (Alan Diaz/AP)

The NFL suspended Miami Dolphins starting safety Reshad Jones after he failed a league drug test, the team announced on Friday via Twitter.

As noted, Jones will miss the first four games of the season — as well as his corresponding salary (Jones has a four-year, $30 million deal) — for violating the NFL’s substance policy. Jones said in a statement via The Miami Herald:

“The NFL recently informed me that I tested positive for a substance that is banned under the NFL performance enhancing substances policy. I worked closely with the union to investigate what happened, and I learned that a supplement I took caused the positive test.”

The unnamed substance, according to the Herald, was a performance enhancing drug. Jones continued:

“I deeply regret not investigating the supplement carefully before I took it, and I will never again take a supplement without having it checked. I am very sorry for the effect of my mistake on my teammates and coaches. I apologize to them, Stephen Ross, the Dolphins organization and fans. During the time away from the team, I will maintain an intense training program so that I can help my team as soon as I return.”

Jones is now the second Dolphins player to fail the NFL’s drug test for PEDs. Last month, Dion Jordan was also suspended for four games for similar reasons.