Earlier in the week, the Giants waived undrafted rookie defensive Janzen Jackson, who Tom Coughlin said wasn't performing up to expectations.

They have now filled his spot with another undrafted rookie defensive back, Laron Scott. A cornerback also known for explosive return skills out of Georgia Southern, Scott tweeted the news last night.

Competition at Georgia Southern, an FCS school, isn't top-notch, but the diminutive Scott performed against the best when given the opportunity, scoring on a 95-yard kickoff return against eventual BCS National Champion Alabama last season.

He could provide competition at both kick and punt returner, especially after both Jayron Hosley and Jerrel Jernigan muffed punts in the Giants' preseason opener against the Jacksonville Jaguars.

The 5-foot-9, 179-pound Scott had 53 tackles and three interceptions on defense last season for Georgia Southern and an a 4.42 40-yard dash at his pro day.

He was waived by the New Orleans Saints on August 6 despite returning a kick 67 yards against the Arizona Cardinals in the Hall of Fame Game the day before.

Jorge Castillo: jcastillo@starledger.com; Twitter: jorgeccastillo