Davis emerged as one of Houston's top receivers last season when Andre Johnson missed seven games with a knee sprain. Davis finished with 33 catches for 583 yards and three touchdowns. He also returned three kickoffs for touchdowns last season, including two in Houston's season finale against Jacksonville.
Signing Davis was a priority for Houston with the status of one-time Pro Bowl kick returner and restricted free agent Jerome Mathis up in the air. Mathis made the Pro Bowl as a returner in 2005, but spent most of the last two seasons on injured reserve before being charged earlier this month with assaulting his pregnant common-law wife.
A second-round pick in 2002, the 28-year-old Davis revived his career in Houston after finishing with just two catches for 13 yards for Buffalo in 2006. He had three straight 400-plus-yard receiving seasons with the Cleveland Browns, but played mostly special teams in 2005 and 2006 in Buffalo and New England.