Carter signed a contract with Washington on Thursday.
Carter's spot on the 53-man roster comes following the placement of Jordan Reed (foot) on injured reserve. He'll serve a depth role in Washington's secondary during the closing stretch of the season.
Carter, who previously spent most of this offseason with Seattle, can play both cornerback and safety. He'll look to compete for a depth role in Carolina, and will likely need to impress on special teams in order to stick around.
Carter was waived by Seattle on Thursday, Bob Condotta of The Seattle Times reports.
Carter signed with the Seahawks last week but was unimpressive in camp. A former third-round pick, Carter has potential to be a solid defender, but he's yet to put his tools together and earn any meaningful playtime. If he clears waivers he'll be a free agent and look to catch on with another club in 2018.
Carter, who signed a reserve/future contract last January, is one of several cornerbacks trying to garner a roster spot in a revamped secondary during training camp.
The former third-round pick of the Lions has been unable to garner any meaningful playing time in the NFL through his first three pro campaigns, logging only one regular-season appearance and bouncing around between Detroit, the Patriots, Bears and Seahawks. However, he may have a chance to stick in Seattle with a strong camp and preseason, considering the Seattle secondary is firmly in a transitional phase. Former stalwart Richard Sherman is now in San Francisco, Dontae Johnson began camp on the PUP list with his surgically repaired foot, Kam Chancellor (neck) is not expected to play in 2018 and Earl Thomas is currently entrenched in a holdout that could ultimately result in a trade. Shaquill Griffin and Byron Maxwell seem to have a firm grasp of the starting cornerback jobs, but Carter -- who boasts 4.5 speed and put together an impressive college resume over three years at Stanford -- seemingly has an opportunity to receive meaningful reps this summer.
Carter was claimed off waivers by Seattle on Thursday, Field Yates of ESPN reports.
Carter was waived by the Giants yesterday and he'll now be a depth corner for the Seahawks. He'll have a chance to earn a spot as a special teams player, but it would be a major surprise if, barring injuries to the position, he has much of any role on the defense when the regular season rolls around.