Miami Dolphins linebacker Raekwon McMillan, who missed the entire training camp and preseason for an undisclosed reason, participated during Monday’s practice six days before the season opener.

Whether McMillan’s absence was for an undisclosed injury or to preserve him for a possible trade, the third-year player’s return Monday comes at a time where he can provide talented depth at a thin position on the roster.

“Raekwon is doing everything he can to get better,” coach Brian Flores said of McMillan. “We’re close. We’re getting close with him. I think you’ll see a little bit of him [Monday], but we’re getting close.”

The Dolphins begin the season on Sunday, hosting the Baltimore Ravens at Hard Rock Stadium, with McMillan competing for playing time behind second-year play caller Jerome Baker, his college teammate, and newcomer Sam Eguavoen, the former Canadian Football League standout who unseated McMillan in the starting lineup.