In about a month, the 2019 Denver Broncos, minus its rookie class, will hit the grass under new head coach Vic Fangio.

But not at full strength.

Per the Denver Post, Fangio announced Sunday at the NFL owners meetings in Phoenix he's shelving running back Phillip Lindsay and cornerback Bryce Callahan for the team's inaugural minicamp, scheduled for the week of the April 25 draft. (The camp is voluntary and a bonus to the Broncos, because they hired a new coach.)

Callahan spent the last four seasons in Chicago with Fangio, so his absence is hardly worrisome. He already has the playbook memorized; all that's left is cultivating peer-to-peer chemistry. Even from the sidelines, the 27-year-old will double as an on-field teacher, easing the schematic transition from Vance Joseph to Fangio. Denver handed him $21 million for a reason, despite undergoing Dec. 12 surgery that handicapped his free-agent value.

“Bryce is a good defensive back, both as a corner and a nickel defensive back,” Fangio said, via the Post's Ryan O'Halloran. “He’s had a lot of playing time the last three or four years in both cases, more so as the nickel DB. But we feel like we’ve added a good player to our secondary that has some versatility.”

He added that Callahan, who ended last season on injured reserve after breaking a bone in his foot, will “maybe” be ready for Organized Team Activities in May.

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Good luck throwing on the trio of top-10 corners (according to Pro Football Focus). The Broncos' overhauled secondary — a group that could receive its own moniker — now features Callahan as the slot man, and All-Pro Chris Harris Jr. and ex-Texans stud Kareem Jackson along the outside.

“Possibly,” Fangio said. “Between Chris, Bryce and Kareem, we have guys who play corner or nickel and in Kareem’s case, possibly play safety. It’s always good to have versatility when you’re putting the thing together because there are basically five starters in the secondary with the nickel position being a starter. Invariably through the season, somebody may get hurt for a game or two so that versatility will help us survive those moments.”

A record-setting Pro Bowler, Lindsay also ended 2018 on IR due to a wrist injury that required corrective surgery. He was given a recovery timeline of 4-6 months, essentially sidelining him until training camp. There's an off chance he can go during Denver's three-day mandatory minicamp in June. But anything prior is dicey.

“I’m not sure about OTAs yet," Fangio said.

Royce Freeman will assume RB1 reps in Lindsay's stead.

With Fangio in tow, the Broncos are permitted to start their offseason program on April 2, two weeks before teams with returning staffs. Phase 1 of the program is strictly limited to weight training and rehab exercises orchestrated by strength and conditioning coach Loren Landow.