After going through only a walkthrough on Thursday—a day in which head coach Matt Patricia called “a big mental day”—the Detroit Lions were back on the practice field Friday afternoon in preparation for the season opener against the Arizona Cardinals. And it looks like they had more participation out of some key players, too.

Most noteworthy was starting cornerback Rashaan Melvin, who had been very limited in two previous practices this week, appeared to be participating in individual drills for the first time since suffering a knee injury in the third week of the preseason. Melvin has had the No. 2 cornerback job locked up since the beginning of camp, and hopes are that the free agent addition can improve upon last year’s struggles from Nevin Lawson and others. It’s still unclear what Melvin’s status will be for Sunday’s game, but he’s certainly trending in the right direction.

Meanwhile, Jarrad Davis and Da’Shawn Hand still continue to sit out the majority of drills during practice. They are both very unlikely to play.

Finally, Frank Ragnow and Trey Flowers—both listed as limited in practice all week—continue to participate in all of the drills during the open portions of practice. At this point, it would be a surprise if either sat on Sunday.

Full injury designation should come out later Friday afternoon.