Updated

The Detroit Lions are releasing wide receiver Nate Burleson and safety Louis Delmas, two starters from last season's team.

Burleson spent four seasons with the Lions, but Detroit likely made this decision with financial flexibility in mind. The 32-year-old Burleson caught 39 passes for 461 yards and a touchdown last season in nine games. He missed time after injuring his arm in a car accident.

The Lions drafted Delmas in the second round in 2009, and he's been a consistent starter for them since then. If Burleson and Delmas don't return to Detroit under different contract terms, the Lions will have significant holes to fill at both receiver and in the secondary.