Sydney has added a new key defender to their stocks, acquiring Aaron Francis from Essendon through a trade.

The versatile backman has frequently been linked back to his home state of South Australia in recent trade periods but has now found a new club in Sydney.

The trade sees Francis land with the Swans along with the 42nd selection at November's National Drat, giving up a future-fourth selection and pick 37 for the Bombers swingman.

Since joining Essendon as the 6th overall pick in 2015, Francis has played in 54 AFL matches.

Francis managed only four games this year but has displayed his obvious talent and potential throughout his AFL career. His ability to swing between the backline and forward line adds depth to a Swans side that has at times struggled with key position availability.

Speaking via an official club statement released by the Swans, Francis stated that he was excited to put pen to paper and begin the second chapter of his career.

“This gives me a great opportunity to play my best football. Sydney is a club with an excellent culture and great leadership and it's probably the best environment for me to find my potential," the South Australian said.

“I'm really looking forward to joining Sydney and grateful for the opportunity.

“To the Essendon playing group, I want to say thank you to all of them. They have been a huge layer of support for me since arriving at the club, and I wish them all the best."

Sydney has had previous success in developing out-of-favour talent, with Paddy McCartin and Tom Hickey excelling in their roles at the club.

The Swans have had a quiet trade period after focusing on re-signing Jake Lloyd, Tom Papley, and Lance Franklin.