The right back is interesting newly relegated Charlton Athletic, but the Press Today suggests that Swans boss Sousa is also monitoring the situation.
27 year old Calderon played his football in the Liga Adelante last season, but left Alaves at the end of last season, and is thought to be keen on a move to the UK.
He would be the Swans’ third summer signing and would be available to join on a free transfer, after his contract expired at the Mendizorroza.
This article first appeared on JACKARMY.net.