Here are 5 takeaways from the weekly news conference for Louisville football coach Bobby Petrino.
The Cardinals are 4-0 and will play Clemson on Saturday night at 8 o'clock in Death Valley.
1. Staff spent a lot of time on Clemson: Louisville coach Bobby Petrino said after the Florida State victory two weeks ago that his staff spent a great deal of time in the offseason preparing for the Seminoles.
Now, the Cardinals play Clemson on Saturday and Petrino admitted there was just as much time spent on the Tigers.
"We spent quite a bit of time," on them Petrino said with a smile.
Petrino said when looking at the schedule and knowing the games his staff needed to put more time in on to get to a championship it was Florida State and Clemson where they put the time in.
2. Lamar is tough on himself: Sophomore quarterback Lamar Jackson has been tough on himself despite accounting for 25 total touchdowns in the first four games of the season.
After the win over Marshall on Saturday, Jackson said he gave himself an 'F' grade for the game. He finished with 417 yards and five touchdowns, while running for 62 yards and two more scores.
Petrino said he had just found out about the 'F' comment and noted Jackson is a "great competitor."
"Sometime when you are a great competitor there are some things that eat at you and absorb your thoughts," Petrino said. "The mistakes you made or the ones you just missed. Sometimes you forget about the great pays you make."
Petrino said he was "vert pleased" with Jackson's performance against the Thundering Herd.
"He was responsible for seven touchdowns," Petrino said. "I thought he did a good job. We didn't get off to a good start and I think it probably ate at him a little bit there."
3. Lamar and all of the attention: Petrino was asked by a national reporter about the attention Jackson has gotten in recent weeks and how he's handled all of the media and hype.
Petrino said the staff has tried to limit the media opportunities for Jackson, who was on the cover of Sports Illustrated last week and is now the frontrunner to win the Heisman Trophy.
"I think it's been a little more than he thought," Petrino said. "But he's done a nice job with it."
Added teammate Jaylen Smith: "Lamar is the same Lamar he's always been. I'm very glad the way he's handling it."
4. Clemson D-line very challenging: Petrino said the Clemson defensive line will be the biggest line the Cardinals have faced - and likely will face - this season.
"They're big and physical," he said. "And they do a nice job techically. We have to block movement with the guys being so big and physical. It's the biggest defensive line we'll play against this year."
5. Kicker position remains open: Louisville used a different kicker - Blanton Creque - last week against Marshall after Evan O'Hara struggled during the week of practice. Petrino said the competition remains open.
Creque missed a 43-yard field goal in the first half but later hit a 39-yard field goal. He was 8-for-8 on extra points.
"He had a good week," Petrino said of Creque. "I liked his approach and his confidence."