Micah Richards has told Sky Sports News HQ he wants to establish himself as a centre-half at Aston Villa.
Mallorca are to give a trial to former Reading and Crystal Palace winger Jimmy Kebe.
The 21-year-old had over a year left to run on his existing deal but the club were keen to tie him to a longer-term agreement.
Alfei, who has spent most of the season on loan at Wrexham, said: "I'm absolutely delighted. It's good to know the club has faith in me and there is nowhere I would rather be than Swansea."