OFFICIAL: Swansea complete deal for Barnsley defender Alfie Mawson
![OFFICIAL: Swansea complete deal for Barnsley defender Alfie Mawson](http://static.goal.com/3660100/3660152_gallery.jpg)
![Swansea City defender Alfie Mawson Swansea City defender Alfie Mawson](http://static.goal.com/3660100/3660152_thumb.jpg)
The Welsh side have confirmed that they have signed the talented young defender who becomes their sixth signing of the summer as Francesco Guidolin looks to strengthen his defence
The Welsh side have confirmed that they have signed the talented young defender who becomes their sixth signing of the summer as Francesco Guidolin looks to strengthen his defence