Not only did the Lions draft seven players, but they’ve signed an assortment of undrafted rookies.

Here are three rookies to keep an eye on:

1. Offensive lineman Riley Reiff has been impressive as expected. Trouble is, the offensive line from last year returns. Reiff will undoubtedly be a starter in years to come at left tackle after Jeff Backus is done, but what about this year. Even though he’d only practiced at tackle (both sides) through OTAs and the minicamp, general manager Martin Mayhew thinks he could play guard too. It will be interesting to see how it shakes out.

2. Wide receiver Ryan Broyles is seven months out from ACL surgery and has said he’ll be ready for training camp. He’s working hard, but there is no guarantee that will happen. If he’s not ready to go he could start the season on the physically unable to perform list which would keep him out of the first six games. They’ve got plenty of wide receivers so there is no reason to push him before he’s ready. Again, he bears watching during training camp.

3. Albion’s Chris Greenwood was a fifth-round pick and despite his small college background seemed to fit in during the offseason. The 6-foot-1 cornerback is more than a project. He’s not going to start — that will be Chris Houston and Aaron Berry — but he could find a role on special teams and work himself onto the roster.

(Until the start of training camp, the Lowdown lists will appear daily, Monday through Friday. Follow @PaulaPasche on Twitter. Email her at Paula.Pasche@oakpress.com.)