The 37-year-old Graham, a 15-year NFL veteran out of Virginia Tech, has played for nine clubs and joined the Saints late in the 2013 regular season.
He spent all of 2014 New Orleans, hitting 19 of 22 field goals. Graham's release, announced Tuesday by general manager Mickey Loomis, comes after the recent signing of second-year kicker Zach Hocker. Fellow kicker Dustin Hopkins also remains on the roster.
The 6-foot-2 Lewis began his NFL career in 2012, when he joined Washington as an undrafted free agent out of East Carolina. He played in three career regular season games with the Redskins, all in 2013. He spent last season on San Francisco's practice squad.
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