ALLEN PARK, Mich. -- A daily review of the hot topics coming out of Detroit Lions training camp:

• The Lions had a scrimmage Saturday during their yearly family day, dividing the roster into the first-team offense and second-team defense on one side and the second-team offense and first-team defense on the other. The first-team offense and defense had all the typical players save Calvin Johnson, who did not practice Saturday. That wasn’t surprising considering the Lions’ focus on keeping their star as fresh as possible. In their daily switch, LaAdrian Waddle lined up with the first team at right tackle and Corey Hilliard with the second team, but that competition between two players who will make the roster continues. Defensively, Tahir Whitehead received a lot of time at linebacker spelling Stephen Tulloch.

• Big day for Eric Ebron, who caught a really long pass from Matthew Stafford and appeared to be more confident on the field than he has at any point this camp. It’s still going to be a learning process for him for a bit and there will certainly be mistakes, but Saturday was encouraging. Lions coach Jim Caldwell also seemed comfortable with Ebron’s progress as he learns the multitude of spots he is expected to line up at this fall. Ebron’s play was one of the highlights for the Lions’ offense of the scrimmage considering his issues with drops.

• The Lions had some issues snapping the ball when Dominic Raiola was not part of the scrimmage. Both Darren Keyton – playing with the first group – and Travis Swanson had bad snaps to quarterbacks, causing issues. In Swanson’s case, it led to a fumble recovery for a touchdown by rookie Larry Webster, one of the better plays the defensive end has made during camp. While Swanson is still expected to be the backup center when everything shakes out a month from now, those issues amplified the importance of Raiola and his presence again this season.

• Detroit’s cornerback situation behind Darius Slay and Rashean Mathis could get interesting. Jonte Green had his best day of camp thus far, breaking up two passes intended for receiver Ryan Broyles, who has not run with the first team much this camp. Chris Greenwood struggled again Saturday as well as those two potentially compete for one roster spot. Slay, Mathis, Bill Bentley, Nevin Lawson and probably Cassius Vaughn appear to be ahead of both Green and Greenwood on the depth chart – although Lawson is going to mostly play nickel. Still a long way to go in this competition with not much settled in the first week.

• Another good day for Detroit’s kickers as Nate Freese and Giorgio Tavecchio made all their field goals attempted during the scrimmage, including a 50-yarder from Tavecchio that sailed through the uprights with ease. Unlike last season, when David Akers won the kicking job fairly easily, this season it seems like this could go on for a while. A wrinkle here could be something Caldwell said Saturday – that the team would consider using punter Sam Martin on extremely long field goal attempts. He compared it to his situation in Indianapolis, where Caldwell considered using punter Pat McAfee on long field goals. McAfee never attempted a field goal in a game, though. So something to consider as this competition progresses -- especially as Martin has an extremely impressive camp punting.

The Lions will take Sunday off before practicing again Monday at 8:30 a.m.