Moeaki has been out of the NFL this season after reaching an injury settlement and being released by the Bills. His most productive season came in his rookie season of 2010 when he had 47 receptions for 556 yards and three touchdowns with Kansas City. Moeaki appeared in only two games with Buffalo last season.
Walters was cut last weekend so Parks could be added to the roster because of depth concerns in Seattle's secondary. Walters has been Seattle's primary punt returner all season and has five receptions.
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