Eder, 27, has been linked with a move to Bournemouth and Everton in recent weeks, as per O Jogo, but a new report in the Daily Mail claims that Swansea City are preparing a £6 million bid to sign him.
The forward currently plays for Sporting Braga in his homeland of Portugal, and he enjoyed a strong 2014/15 season. He scored 14 goals in 38 games as Braga recorded a fourth placed finish, but that is not representative of his career wide scoring record.
The season before he scored just four times, and he has only netted 52 goals in 188 games across his entire career as a professional footballer.
However, he has earned international recognition with Portugal, playing at the 2014 World Cup, but he only netted his first goal earlier this month - despite winning 18 caps.
Despite his less than impressive scoring record, Swansea have clearly seen enough to suggest that Eder would be a Premier League success, and are said to be preparing a £6 million offer.
The O Jogo report referenced interest from Everton and Bournemouth, although there are no indications as to whether they are prepared to open talks in the coming weeks.
Would Eder be a good signing for Swansea?
Swansea need to sign attacking reinforcements this summer, following the sale of Wilfried Bony in January, which left Bafetimbi Gomis as the only natural goalscoring forward. Whilst Gomis is impressive, he needs both cover and competition, and Eder could be a cheap back-up option at £6 million.
However, his career record is not impressive, and if a purchase is agreed, the Swans will be hoping that the 2014/15 campaign was the start of a period of impressive form. If he has finally reached his peak he could be a good signing, and he provides the same kind of threat as Bony used to at the Liberty Stadium.