Dante Fowler Jr. didn't miss a game in three years of college.
The former Florida star likely will miss his entire rookie year in the NFL.
The Jacksonville Jaguars defensive end, the third overall pick in last week's NFL draft, is likely out for the season after tearing a knee ligament during his first practice.
Fowler tore the anterior cruciate ligament in his left knee during rookie minicamp Friday. ESPN first reported the extent of the injury.
The injury looked serious live and appeared even worse in video replays. Tests revealed the extent of the damage.
Fowler's knee buckled during an 11-on-11 drill as he engaged right tackle Watts Dantzler. Fowler dropped to the ground, grabbed his leg as he rolled from side to side and eventually got helped off the field. He was carted to the locker room.
"I went to apologize to him and he was like 'You're good, man. It's just football,''' Dantzler said.
The Jaguars were counting on Fowler to be a centerpiece of the defense for years. They had expected him to be a Day 1 starter, meaning he would replace 33-year-old veteran Chris Clemons.
Now, though, it's unlikely he will play in 2015.
Hundley ready to learn
Even though other members of his draft class have far better odds of playing right away, Brett Hundley doesn't plan to alter his approach.
The Packers' fifth-round pick is well aware of the depth chart at quarterback, the one that has reigning NFL MVP Aaron Rodgers at the top.
"God put me in Green Bay for a reason, and I'm ready to learn and work," Hundley said after the Packers' first rookie camp practice.
Coach Mike McCarthy said the 6-3, 226-pound Hundley "threw the ball well."
The rookie minicamp opened with top draft pick Damarious Randall limited by a minor ankle injury. But McCarthy said the injury won't keep the defensive back from Arizona State out for very long.
•The Panthers' top two draft picks were unable to finish rookie minicamp practices because of minor injuries. Linebacker Shaq Thompson, the 25th overall pick, left halfway through the afternoon's practice because of a strained hamstring. A short while later, second-round pick Devin Funchess was carted off early to get an IV for leg cramps.
•The Jets signed defensive end Leonard Williams and wide receiver Devin Smith, their top two draft selections, to four-year contracts. Williams was the No. 6 overall selection last week out of Southern California. His deal is worth up to $18.6 million, including a signing bonus of nearly $12 million.
•The Cowboys announced defensive lineman Josh Brent is retiring for the second time since the drunken-driving crash that killed teammate Jerry Brown and derailed his career.