By MIKE HERNDON, columnist
What the Titans got from rookie quarterback Will Levis in his NFL debut was more than anyone could have reasonably expected. Levis threw for four touchdowns – tying an NFL record for a debut performance that he now shares with Marcus Mariota and Fran Tarkenton – to go along with 238 yards and a 65.5 percent completion rate.
Let’s talk, briefly, about the comparison to Mariota’s debut because there are some major differences between the two performances that, to me, make Levis’ far more impressive. For one, none of Mariota’s four touchdown passes traveled more than 15 yards in the air. They were good, accurate throws, but none were as eye-popping as Levis’ two second-half tosses.
This Day In History: @Titans rookie QB Marcus Mariota had a HISTORIC @NFL debut.
— NFL Legacy (@NFLLegacy) September 13, 2018
He had 4 touchdowns, 0 interceptions, and a 158.3 passer rating. Mariota became the 1st QB in the modern era to post a perfect passer rating in his first career start. #TDIH (Sept. 2015) pic.twitter.com/VmAOrVUWJw
But also, the 2015 Bucs proved to be one of the worst defenses in football, allowing 26.1 points per game, good for
