JACKSONVILLE – Now, it begins.

"Today's the start of probably the toughest stretch they go through," Doug Marrone said.

The Jaguars' head coach was speaking early Monday about the current week of Jaguars 2018 Training Camp, a week that includes five practices – likely all padded – that concludes with Friday evening's session inside TIAA Bank Field.

The Jaguars are scheduled to work Monday, Tuesday, Wednesday and Thursday mornings. They held two non-padded practices to start training camp last Thursday and Friday before the first padded practice Saturday night.

"It's the start," Marrone said shortly before a scheduled two-and-a-half hour practice at the Dream Finders Homes Practice Complex. "A lot of what happens this week is working on building that identity of what we want to be."

Marrone said this week is as much about mental toughness as physical.

"Somewhere along the lines for everyone, your body's going to be tired," he said. "Your mind's going to have to come over it. It's a challenging week, but that's what we like."

Marrone spoke for about 15 minutes Monday, updating the status of several players and discussing the continued absence of cornerback Jalen Ramsey.

Ramsey, a third-year veteran and a first-team Associated Press All-Pro selection, missed the first three training camp practices last week following the birth of his daughter. Marrone said he wasn't in attendance early Monday, and said what he said throughout last week – that Ramsey will report when "he's ready to come back."

Marrone was asked if there was a time when Ramsey would be behind if he didn't report.

"I don't think it's going to get to that point," Marrone said. "There's a point like that for every player … where I think you do get behind. We haven't reached that with anyone right now."

Marrone also on Monday addressed the offensive line, saying the unit appears to have started camp well. He praised veteran guard A.J. Cann, a starter in his first three seasons who missed much of the offseason program with an injury. Cann has worked with the starters at right guard early in camp and appeared strong in padded pass-rush drills Saturday night.

"It's the first day, so you always say the same thing: 'Let's not get too excited about someone who played well, and let's not get too down on somebody who we had a better expectation for and many didn't meet it,' " Marrone said. "I thought A.J., who had not been out there, came out and had a good day [Saturday]."

Also:

*Wide receivers Marqise Lee and Donte Moncrief are expected to work on the side in practice Monday, Marrone said. Moncrief sustained what appeared to be an ankle injury in practice Friday and worked in individual drills Saturday; Lee sustained an unidentified injury in practice Saturday. Marrone said the injuries aren't thought to be serious. "They'll be on the side today," Marrone said. "They'll be day-to-day. It's a matter of getting them back when they're released [medically]. It's better when you see those guys on the side. Usually when you see guys on the side it means they're close to coming back." …

*The Jaguars signed second-year defensive tackle Kaleb Eulls Monday and waived/injured fourth-year defensive tackle Kapron Lewis-Moore. Eulls previously has spent time with the Los Angeles Chargers and New Orleans Saints. "He was doing a nice job," Marrone said of Lewis-Moore. "We had to waive him. We're trying to keep 90 players and keep everybody out there." …

*Offensive tackle Brandon Smith on Monday passed his physical and was removed from the reserve/non-football injury list. He was expected to practice Monday. …