On Tuesday morning - more than a year and a half after his commitment - the former Trinity High School standout had the first official fall practice of his college career.
The 6-foot-3, 210-pound Bonnafon was one of three quarterbacks in the morning - newcomers - practice and was impressive in the two-hour workout open to the media and public.
"It felt good to finally be out here," Bonnafon said. "It hasn't hit me yet but it probably will in meetings later.
"I expected practice to be fast. Halfway through practice, it hit me that we were flying through it. All the guys stayed pretty hydrated, and the training staff does a good job of getting us prepared for practice. I think we all came out here and did a good job today."
Bonnafon only played one year of varsity quarterback at Trinity but several times in recent weeks U of L coach Bobby Petrino said he "expects him to compete" for the starting quarterback spot this season.
Petrino has talked about perhaps getting Bonanfon a series in the second quarter if he wins the back-up QB spot.
"I hear what he says," Bonnafon said. "For myself, I want to try to push for that job. All the quarterbacks, we’re trying to get better every day."
After enrolling earlier this summer, Bonnafon said he's worked hard with the training staff to bulk up and try to learn the playbook. The offensive system is similar to what he ran when he was at Trinity.
Bonnafon played wide receiver as a junior at Trinity at 180 pounds and was between 190-195 last season at quarterback.
"I’ve gained quite a few pounds," he said. "This morning, I weighed in at 209. I put on some weight. The strength staff – coach (Joe) Miday and coach (Scott) Wilks – they push us in the weight room, so I feel a change.
"I feel more powerful in my legs. My arm seems to be stronger than it used to be. Little things like that go a long way."
Also working in the morning session was transfer quarterbacks Tyler Ferguson and Tyler Bruggman. Both have to sit out this season because of NCAA transfer rules.
Ferguson, who came to U of L from Penn State, was quite impressive on opening day, especially on the deep ball. He threw several long TD passes during the skeleton drills.
Bruggman came from Washington State and just arrived on campus this past weekend.
"The biggest thing is that they are here to learn the offense," Petrino said on Monday. "It's a huge advantage for them to go through game planning and how to install.
"So that's what they're here for and they can help us this year in the quarterback room."