LAKE FOREST, Ill. — The Chicago Bears have agreed to a one-year contract with former Minnesota Vikings running back Lorenzo Booker.

Booker, a 2007 third-round draft pick by the Miami Dolphins, spent the past two seasons with the Vikings and was used primarily as a kick returner and third running back.

He returned 37 kickoffs for 879 yards during his two seasons with the Vikings. He also had 13 carries for 52 yards in 2011.

Besides agreeing to a deal with Booker, the Bears also released running back Alvester Alexander — an undrafted rookie from Wyoming — on Tuesday, July 17.