"I think it was B.S.," Whisenhunt said after Tennessee's 38-10 loss to Miami. "That's not the way you play football. I think it was done with the idea of trying to hurt our quarterback, and that's bulls--- football."
Mariota didn't leave the game, but he was clearly hobbled and wore a left knee brace for the remainder of the game, in which he lost two fumbles and threw two interceptions. He will have an MRI exam Monday, a league source told ESPN's Adam Schefter.
The rookie quarterback said Vernon approached him after the game to apologize for the play, which drew a roughing the passer flag.
"I don't think it was malicious," Mariota said.
Vernon acknowledged that he wanted to see video replay of the hit but emphasized that he is not "a dirty player."
"I know one thing -- it wasn't intentional," Vernon said. "I've never been a dirty player in my whole career. ... Nobody tries to get personal fouls. I know one thing, they are expensive."
Mariota said he expects to be a full-go for Wednesday's practice as the Titans prepare for next week's home game against Atlanta. He was sacked five times Sunday, raising his season total to 19.
Despite Mariota's sentiment, Lewan echoed Whisenhunt's criticism of Vernon's hit.
"I think it is bulls--- football," said Lewan, who was beaten by Vernon on the play. "I'm so tired of people being politically correct. That's bulls---, that's f---ing bulls--- to do that to a player -- to do that to a guy's career.
"That was my guy and I blocked him, and Marcus threw the ball and I saw Marcus threw the ball, and that guy jumped in his legs. Do I wish anything upon him? No. I should have blocked him longer. That's the end of the story."
ESPN.com Dolphins reporter James Walker contributed to this report.
Whisenhunt angry over hit on Mariota
Titans coach Ken Whisenhunt expresses his displeasure over Dolphins DE Olivier Vernon's hit on Marcus Mariota in the first quarter of Tennessee's 38-10 loss to Miami.