Marcell Dareus announced Saturday that he is entering a rehabilitation facility.

The NFL announced Tuesday that Dareus will be suspended for the first four games of the regular season for a violation of the league's substance-abuse policy. Dareus told reporters Wednesday that he missed a drug test.

"After careful consideration of recent events within my life, I have made the decision to enter a rehabilitation facility," Dareus said in a statement released Saturday by the team. "I feel this is the best decision for me, my family and my teammates as I move forward with my career. I appreciate the support of my teammates and the Bills organization through this process."

"We are fully supportive of Marcell and this decision to take the time he needs to seek treatment," the Bills added in a separate statement.