Tennessee Titans' head coach Ken Whisenhunt reacted strongly on the low hit against their freshman quarterback Marcus Mariota, resulting to a possible knee condition that worries the team.

Mariota was hit by the Miami Dolphins' defensive end Olivier Vernon, during their game on Sunday, Oct. 18, to which the Titans lost with a scorecard 38-10, ESPN reported.

How the Florida-born defensive end hit the 21-year-old quarterback was shown on a clip uploaded by Media TV on YouTube.

Whisenhunt was clearly disappointed how his quarterback was hurt, and he feels that Vernon's intentions were not at all indicative of a clean-playing sportsman.

"I think it was B.S.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," the Titan's coach said during a post-fight press conference.

Titans' left tackle Taylor Lewan echoed the strong words from Whisenhunt's, indicating that Vernon's act was very inappropriate and dirty "to do that to a player — to do that to a guy's career."

However, the Honolulu native, who received the hit personally was very understandable of his fellow NFL athelte and did not think that Vernon did it in a "malicious" way.

The 25-year-old Dolphins' player also defended himself, saying that it was not "intentional."

"I've never been a dirty player in my whole career...Nobody tries to get personal fouls. I know one thing, they are expensive," Vernon said.

Mariota will undergo an MRI on his left knee to further examine his physical condition, confirms Adam Schefter of ESPN via Twitter. The news was first reported by Pro Football Talk, citing a source knowledgeable of the matter.

Sports Illustrated noted that the Titans' quarterback was able to deliver completely 21 of his 33 passes for 219 yards, including one that scored a touchdown. He also got two interceptions, was sacked six times and lost two fumbles during the Titans' showdown with the Dolphins on Sunday.

During the final drive, Titans' backup quarterback Zach Mettenberger stood for the 2014 Heisman Trophy award-winning him alum of the University of Oregon, Bleacher Report noted.

Great potential

Mariota's debut this 2015 season was spectacular as he set the record to be the only NFL player to "throw four touchdown passes in just the first half" of his first game, per NFL.com. Hopefully, the MRI test will reveal nothing to worry about.