Coming off injury, tailback Tre Madden has been impressive for USC

Tre Madden showed no signs of hesitation in the first four days of USC’s training camp.

The senior tailback, sidelined last season because of a foot injury, had another outstanding day Tuesday and was looking forward to Wednesday’s practice, the Trojans’ first in full pads.

“I’m ready to go,” Madden said. “It’s going to be a great day with a lot of contact.”

With Justin Davis sidelined because of a hamstring injury, Madden has taken most of the first-team reps. He is making sharp cuts, catching the ball well and tutoring freshmen tailbacks Ronald Jones II, Dominic Davis and Aca’Cedric Ware.

“He’s a good fit for our scheme,” Coach Steve Sarkisian said. “We thought that last year too.”

Madden never got the chance to show Sarkisian what he could do.

Madden’s resume includes four 100-yard rushing performances in the first five games of the 2013 season.

But it also includes injuries.

The former linebacker sat out the 2012 season after suffering a knee injury during spring practice. After his breakout performances in the first half of the 2013 season, he was slowed or sidelined by several injuries.

Sitting out last season because of the foot issue, he said, was difficult on several fronts.

“Not being on the field contributing, being on the sideline, not being able to help the team in the good moments and the hard times,” he said. “But it’s a new year.”

Madden was limited during spring practice but he appears back to full speed. Sarkisian said he had no concerns about Madden participating in a full-contact workout.

“He’s totally 100%,” Sarkisian said.

Quick hits

Freshman linebacker Porter Gustin made an impression the last few days coming off the edge, Sarkisian said. ... Receiver JuJu Smith-Schuster had his most productive practice, making several impressive catches on both short and deep routes. ... The Trojans practice Wednesday at 5:30 p.m.

gary.klein@latimes.com

Twitter: @latimesklein