He spent four years in Seattle as one of the original members of the "Legion of Boom" and is now midway through his seventh year in the league.
What the Seahawks value in Maxwell is his ability to cover. The veteran corner started opposite Sherman and played a huge role during the Seahawks' back-to-back Super Bowl appearances in the 2013 and 2014 seasons.
Almost a full calendar year later, Maxwell was shipped to the Miami Dolphins.
An official announcement of Maxwell's signing, which was confirmed to the Seattle Times, will likely come before the team returns to the practice field this afternoon - players were given the weekend off following the Arizona game.
Maxwell will give the Seahawks another option if Lane struggles as the starter.
Prosise suffered another ankle injury against Arizona on Thursday and will end his second season with Seattle having gained 23 yards on 11 carries and catching six passes for 87 yards.
Maxwell excelled in Seattle's defensive system, which helped him get the lucrative contract from the Eagles in the 2015 offseason. In a text message exchange, Quinn wished Sherman well, while Sherman said he'd miss competing against Julio Jones, per Vaughn McClure at ESPN.