Perhaps Ndamukong Suh's dirty-play reputation is born out of amnesia.

The Dolphins defensive tackle is under investigation by the league for a play in which he appeared to have kicked the helmet off Redskins running back Alfred Morris during Miami's 17-10 victory in Week 1 in the NFL, Pro Football Talk is reporting.

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"As the new NFL regular-season begins, Suh has re-entered the middle of the league office's radar screen with an apparent kick to the head of Washington running back Alfred Morris," Pro Football Talk reported. "As of early Sunday evening, the NFL had no comment on the situation. Look for the league to review the play and all relevant angles on Monday, and to potentially take action sooner than later."

It is the second infraction in as many regular-season games for Suh, who stepped on the leg of Packers quarterback Aaron Rodgers in the regular-season finale last year when Suh was a member of the Lions.

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When reporters questioned Suh about his latest escape, which also included an allegation of poking Miami offensive tackle Morgan Moses in the eye, the Dolphins defender had no recollections of any incidents, CBS Sports reported.

Of the incident with Morris, Suh said, "I tackled him plenty of times during the game," according to Mark Maske of the Washington Post. "So, no, I'm not really sure what you're speaking of."

When asked about the incident with Moses, Suh responded, "I don't know. The only guy that I saw got poked in the eye was my guy (Miami's Derrick) Shelby.

Suh originally drew a suspension on his actions against Rodgers but won an appeal and was able to appear in the NFC Wild Card Game against the Cowboys. Pro Football Talk said the suspension likely was rescinded because Suh had gone 32 regular-season games without an infraction.

With back-to-back regular-season game issues, Suh may face more serious consequences.

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