West Ham are preparing a second offer for young Swansea defender Alfie Mawson, despite having their first bid rejected.

According to the Mail, an initial ?18million bid for the former England under 21 international was rejected prior to the Christmas break. And according to writer Sami Mokbel, West Ham are set to launch a new ?25million, record-breaking offer in order to land their target as soon as possible.The proposed deal is reported to comprise of ?20million up front with a further ?5million to follow depending upon appearances.* In other transfer news, the Hammers are being linked with a move for Hibernian midfielder John McGinn.The 23-year-old was close to joining Championship side Nottingham Forest last summer but the two clubs failed to agree terms prior to the closure of the transfer window. New Hammers boss David Moyes is reported to be ready to test the water with an offer for the 23-year-old.* West Ham have been told it will cost them ?22million to sign highly-rated Atlanta striker Bryan Cristante.The 22-year-old has impressed whilst on loan in Italy and is set to complete a 'permamnent' move from Benfica to Atalanta. The later are poised to trigger a ?4.5million option to buy Cristante - and make a huge profit by selling him on immediately.