INDIANAPOLIS -- The Detroit Lions continue to clear salary cap space and restructured receiver Nate Burleson's contract, which should guarantee his spot on this year's team.

The move does not come as much of a surprise.

Burleson was slated to earn $4.5 million in 2013 ($6.5 salary cap number) and $5.5 million in 2014 ($7.5 million salary cap number) over the next two seasons. Details of Burleson's new contract are unknown, but the move will allow Detroit to make a free agency push this offseason.

Last year, Burleson broke his leg and was placed on injured reserve. He is currently rehabbing and preparing for the upcoming season.

Detroit has been busy clearing cap space this offseason.

The Lions previously released defensive end Kyle Vanden Bosch and guard Stephen Peterman, plus reworked the final year of center Dominic Raiola's contract. Detroit also would like to rework quarterback Matthew Stafford's deal, which would give the team a huge salary cap break.

Stafford has two more years remaining on his contract, and will earn a base salary of $12 million in 2013, but his salary cap hit is $20.3 million. He will earn $11 million in 2014 ($19.3 million salary cap number) and $15 million in 2015 ($17.7 million salary cap number). He is likely the final component needed if Detroit wants to re-sign Cliff Avril, or make a run at another free agent this offseason.