Vikings wide receiver Laquon Treadwell was fined $13,369 by the NFL for throwing his helmet last Sunday against New Orleans, a source said Saturday.

The fine had been expected. When asked Friday if the NFL fines players for what Treadwell did, he said, “Yeah, they do.’’ When asked if had gotten word then about being fined, he said, “I plead the fifth.’’

In the 30-20 loss at U.S. Bank Stadium, Minnesota was flagged 15 yards for unsportsmanlike conduct when Treadwell threw down his helmet in frustration after Adam Thielen lost a second-quarter fumble that was returned 54 yards to the Vikings 33. The penalty moved the ball to the 18, and the Saints scored a touchdown two plays later to take a 17-13 lead.

Treadwell said Friday that Vikings coach Mike Zimmer spoke to him about the incident.