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

• The most important and interesting item to come out of the first day of Lions training camp had nothing to do with anything the team did on the field. Instead, it had everything to do with Detroit's decision to table contract talks with Ndamukong Suh until after the season. The Lions said they decided to do this to make sure the focus remained solely on the season ahead, but they also took attention away from the first day of training camp with an off-the-field issue. At least for Detroit, it can avoid daily questions about it from now on.

• Rookie linebacker Kyle Van Noy had a bit of a rough day. He injured his thumb during the first half of practice, ending the second round pick's participation in the first training camp practice of his career. He didn't seem too bothered by it, though. “I should be out there (Tuesday),” Van Noy said. Lions coach Jim Caldwell seemed a bit less optimistic, saying “we'll see how he goes the rest of the week.” Caldwell said the team wouldn't be able to determine the extent of the injury until Tuesday.

• The Lions' secondary had a pretty decent first day in 11-on-11 work. Both Darius Slay and Rashean Mathis broke up passes intended for receiver Golden Tate, and the secondary covered well enough on other plays in the full-team periods to force Lions quarterback Matthew Stafford to have to throw dump-off passes to running backs Joique Bell and Reggie Bush instead. It's only one day and they are not in pads yet, but a decent sign for a Lions secondary that needs to put together a few good days early.

• One of two Lions players who did not practice -- as expected -- was defensive end Ezekiel Ansah. Caldwell said Sunday he did not have a timetable for his return. Ansah spent most of Monday's practice off on the side chatting with folks. When asked about his return, he said he had no idea when he would come back. Another defensive end, Kalonji Kashama, was released by the team Monday.

• In the battle for receivers not named Tate or Calvin Johnson, both Kris Durham and Kevin Ogletree had nice catches Monday. Ogletree had an impressive catch over the middle -- although he probably would have been drilled by a defensive back had it been a real game. Durham made a nice catch running an out on the sideline as well. In what is expected to be an extremely tight battle, plays like that are going to be noticed every practice.

• This will be worth paying attention to throughout the first week: Corey Hilliard took snaps at right tackle ahead of LaAdrian Waddle during 11-on-11 periods Monday. Hilliard is more of a veteran than Waddle and Waddle is still expected to win the job, but an interesting small side note on the first day.