More: Competition breeds best out of RBs | Fuller fighting to stay at top

Complete camp coverage: 2017 football primer

After a spring that did little to impress a new coaching staff, Markell Jones knew he’d have to approach the summer and fall camp differently than he had since, maybe, he first enrolled at Purdue.

Entering this summer, Jones no longer was the Boilermakers’ unquestioned top dog in the backfield. So he pressed, pushed and worked to dispel those notions.

Entering this training camp, Jones still wasn’t at the top of the depth chart, though he had taken steps this summer to assuage some of the coaches’ concerns about his passion for the game and willingness to work at it. Summer workout warriors D.J. Knox and Richie Worship were 1-2 on the depth chart, and Tario Fuller, who’d exited the spring at No. 1, was close behind. Jones still had more to prove.

Over the first nine practices of camp, he thinks he has shown something. But also knows he can’t relent on his dogged pursuit of being RB1.

Because he’s not done yet.