Square apologetic; Chargers D-line regroups

Bears Jay Cutler passes as Chargers Damion Square approaches in the 4th quarter.Damion Square stood and addressed teammates in a meeting Thursday morning.

The moment was a long time coming.

In early January, the Chargers defensive lineman said that he was summoned for a random toxicology test at his Texas home. But he was not in Texas; he was in Alabama. Due to a “miscommunication” for which he claimed responsibility, his failure to attend violated the NFL’s substance-abuse policy.

He filed an appeal.

It was denied

“You try to blink and hope it isn’t real, but it was real,” Square said. “I made a mistake. It’s one you always want to take back, but you can’t take it back. So you just take it and…