TUSCALOOSA, Ala. — The University of Alabama football team sported a number of black jerseys, which signal no contact, during Tuesday’s practice.

“We were very, very conservative today in terms of if guys were a little bit beat up and had an issue and they could have practiced, we held them out, especially guys who have played a lot of plays,” Coach Nick Saban said. “We had some guys in black shirts out there today that could have probably practiced and didn’t do a whole lot will probably come back tomorrow.”

With Alabama on a bye, Saban announced that senior wide receiver DeAndrew White and redshirt freshman running back Tyren Jones won’t practice much this week.

White returned from a shoulder injury and had six receptions for 48 yards, and also a fumble that was returned for a touchdown, during last Saturday’s 42-21 victory against Florida. Jones has an undisclosed injury.

Among those who wasn’t doing much during the observation period was senior quarterback Blake Sims (shoulder).

Meanwhile, Saban said that defensive backs Jarrick Williams and Eddie Jackson were both “full-tilt” at practice. Williams (foot fracture) dressed but did not play against the Gators. Jackson is coming off knee surgery in April and sustained a quad injury against Southern Miss.

With senior safety Nick Perry suspended for the first half against Florida due to a second-half targeting penalty called in the Southern Miss game, junior Geno Smith started at free safety, sophomore Maurice Smith took Williams’ spot at star (the fifth defensive back in the nickel formation), and true freshman Tony Brown started at cornerback.

“They did some good things in the game but they also did some things that they need to improve on,” Saban said. “It’s kind of like when you bring a new guy to the big leagues and nobody’s ever seen him pitch, nobody has a scouting report on him.

“Well, we have a scouting report on every player because we watch the film. It’s the same film that everybody else watches so when you don’t do things correctly, the next team’s going to take advantage of it. That’s why it’s important to improve. That’s why we give every player this week … Every coach met with them this week and said, ‘These are the things that you have to improve on.’ Some are eye control, discipline in what they look at, some it’s footwork.

“Playing the ball. Most every guy we’ve got playing out there has good ball vision and good hands. That’s one of the big things about playing defensive back. Yet we’ve got guys that go into the game and don’t play the ball. Geno did it in this last game when he was in position to make a play on the ball. Those things come with confidence, and we’ve just got to continue to work with the guys on that.”

No. 3 Alabama next plays Oct. 4, when it visits Ole Miss (3:30 p.m. ET, CBS).