Career
Swansea City
Alfei made his league debut a week later, as an 88th-minute substitute against Crystal Palace. He signed a new three-year contract in April 2011. On 9 May 2013, Alfei signed a new contract with Swansea until June 2016.
Wrexham (loan)
On transfer deadline day on January 2012 he signed for Conference National side Wrexham on a season long loan.
He returned to Swansea at the end of the 2011-2012 season. In October 2012 Alfei re-joined Wrexham on loan until January 2013.
Wrexham extended Alfei"s loan until the end of the 2012–2013 season. Portsmouth (loan)
On 2 January 2014, Alfei joined League Two club Portsmouth on loan for one month.
On 31 January 2014, Alfei"s loan was extended until the end of the season.
Northampton (loan)
On 2 July 2014, Alfei signed for League Two club Northampton Town on a season long loan. Alfei made 14 appearances for Northampton before his loan was terminated on 2 January 2015. Alfei represented and captained the Wales under-19 team and has played several times for the Wales under-21 team
In January 2013 he was selected in the Wales under 21 squad for the friendly match against Iceland on 6 February 2013.