Bush recently completed his second season in Detroit, running for 297 yards and two touchdowns with 253 receiving yards in 11 games in 2014. In his first season with the Lions in 2013, he ran for 1006 yards with four touchdowns and added 506 receiving yards.
Last month, Bush said he wants to be back with Detroit next season, saying he thinks he still has "a lot left to give this game." He had two years remaining on his contract and was scheduled to make $3.5 million next season and $4 million in 2016.
The 29-year-old is a former No. 2 draft pick by the New Orleans Saints in 2006 out of USC and spent the first five seasons of his career with the Saints. He was traded to the Miami Dolphins in 2011, running for a career-high 1086 yards and six touchdowns in his first year there.
At USC, Bush won the Heisman Trophy in 2005, which he later forfeited after the NCAA found he received illegal benefits during his time with the Trojans.
Bush won the Super Bowl in 2010 as a member of New Orleans.
- Molly Geary