For the coaching staff, it was their first on-field look at the Broncos' draftees and undrafted free agent signings, along with a trio of players invited for an extended tryout.
According to Mike Klis, two of those invitees were impressive enough that they will be signed - CSU DE Lanston Tanyi, and UCLA LB Damien Holmes.
Following four years at Appalachian State, Tanyi played one season for the Rams as a grad student, racked up 77 tackles and three sacks, and was voted the squad's MVP by his teammates.
Tanyi, who measures in at 6-3, 261 pounds, was a late addition to the minicamp roster after Baylor DE Gary Mason failed his physical due to a knee injury.
The 6-2, 236-pound Holmes accumulated 20 tackles for loss and eight sacks in four seasons at UCLA, with much of that production (10 TFL, 5.5 sacks) coming during his senior campaign.
Holmes will replace CU LB Doug Rippy, who was released following the minicamp.
We've updated our UDFA Tracker to reflect the anticipated signings.
As for Denver's draftees, fifth-round DE Quanterus Smith again says he expects to be ready to go in time for training camp; an ACL injury had cut short his senior season at Western Kentucky. Although Smith has been running since February, he won't be actively participating in any of Denver's on-field work during OTA's and mandatory minicamp in June.
Most of the rookies - with the exception of Montee Ball, C.J. Anderson, and Aaron Hester, who must return to their respective schools for classwork - will be back at Dove Valley on Monday, for the continuation of the team's offseason conditioning program.
Ball will be back with the team for OTAs the following week, while Anderson and Hester won't be around again until training camp.
Andrew Mason tells the story behind the jersey numbers of Denver's Day 3 draft picks.
Updated 9:29pm ET