The Bears re-signed safety Alex Cook Thursday morning, two days after cutting him. In between, the entirety of the Bears defense did 40 up-downs during their first practice Wednesday,

Bears Bolster Defense With Two Veteran Signings originally appeared on Athlon Sports. Chicago kicks off camp with roster shake-ups and strategic signings on defense.

Writer Gabby Hajduk previews the Bears' defensive line, a group that boasts a wealth of experience at both the edge rusher and tackle positions through a combination of new and returning players.

Dennis Allen is having the Bears defense do the classic football conditioning up-down drill for a good reason. It's part of his test, which is fitting challenge for this veteran unit.