Soz if already posted... West Ham set to launch £25m bid for Swansea's Alfie Mawson as David Moyes looks to bolster his defence The England hopeful has been a rare bright spot for the Swans during a hugely disappointing campaign. The Hammers want to add the 23-year-old to their squad when the January window reopens next month and are making early moves to ensure a deal can be completed early. Swansea have already rejected an £18million offer from West Ham, telling the east London club they would only consider a deal worth £25million. It is understood the Hammers are ready to meet Swansea’s demands by tabling an improved offer worth a guaranteed £20million plus a further £5million in add ons. It remains to be seen whether the offer will be enough to tempt Swansea into selling Mawson. But any money from Mawson’s departure could be used to offer their next manager additional funds in the transfer market. It is understood 15 percent of any fee for Mawson will go to Barnsley as part of the deal that took him to the Liberty Stadium in August 2016.