FREMANTLE, looking to bolster its midfield, has tabled on offer to Port Adelaide's Danyle Pearce on the first morning of free agency.
Pearce is a restricted free agent, meaning the Power have the right to match any offer within the next 72 hours.
The Dockers have lodged paperwork with the AFL.
"The Fremantle Football Club has today lodged documentation with the AFL for Port Adelaide restricted free agent Danyle Pearce to join the club," the Dockers said in a statement.
Pearce has played 154 matches for the Power since making his debut in 2005. He was named the AFL Rising Star in 2006.
"The club will not be making any further comment until the free agency process is completed," the Dockers said.
If Pearce was to leave, the Dockers would receive a compensation pick in the national draft, possibly a second-round selection.
Power defender Troy Chaplin, a restricted free agent, is firmly on Richmond's radar.
Meanwhile, the Power is expected to hold a second meeting with unrestricted free agent Jordan Russell this week, with the former Blue hopeful a contract offer will be presented.
Russell met with Port last week.