Swansea City Set to Sign Benfica Striker on Loan Swansea City are set to sign Portugal striker Nelson Oliveira on loan from Benfica,'BBC Sport understands. Swansea City are close to signing Portugal striker Nelson Oliveira on loan from Benfica. Swans are hopeful of completing the deal today. ' BBC Wales Sport (@BBCWalesSport) December 23, 2014 The Swans hope a dealfor the 23-year-old will be finalisedon Tuesday, though he won't be eligible to play until January 1. Click here to read full news..