NEW YORK — Cleveland Browns receiver Donte’ Stallworth was suspended without pay for this season Thursday after pleading guilty to killing a pedestrian while driving drunk. He cannot participate in any team activities until his reinstatement after the Super Bowl.

NFL commissioner Roger Goodell said Stallworth placed a ‘‘stain’’ on the reputation of the league and all its players.

Stallworth struck 59-year-old Mario Reyes on March 14 in Miami. He pleaded guilty June 16 to DUI manslaughter, a second-degree felony, and was suspended indefinitely by Goodell two days later.

Stallworth drew a 30-day jail sentence and reached an undisclosed financial settlement with the family of Reyes, who was leaving his crane operator job when he was struck.

In a letter to Stallworth released by the NFL, Goodell said he didn’t take into account the sentence in determining the 28-year-old player violated the league’s substances of abuse and personal conduct policies.

‘‘Your conduct endangered yourself and others, leading to the death of an innocent man,’’ Goodell wrote. ‘‘The NFL and NFL players must live with the stain that you have placed on their reputations.’’