Titans left tackle Taylor Lewan has been suspended the first four games of the 2019 season after a failed drug test for a banned supplement, NFL Media reported Wednesday.

But Lewan insisted he did not take it knowingly as he shared an emotional video on Twitter revealing he went so far as to take a polygraph test to prove it.

"Thank you to everyone w

ho sees this video and supports me," Lewan wrote. "My family and I are so grateful to the Tennessee Titans organization and fans for your support. I will post the polygraph information next."

Nonetheless, Lewan will now miss the team's opening game against the Browns on Sept. 9 as well as their home opener against the Colts, Week 3 against the Jaguars and Week 4 against the Falcons.

Lewan, who turned 28 on Monday, has spent his entire career in Tennessee after being selected 11th overall out of Michigan in the 2014 draft. He has been named to three straight Pro Bowls, which earned him a five-year contract extension worth $80 million last year to make him the highest paid offensive lineman at the time.

The Titans are scheduled to hold their first training camp practice Friday.