1 1 ▁June ▁ 2 0 1 9 : ▁A aron ▁Hugh es , ▁ 3 9 , ▁former ▁Northern ▁Ireland , ▁New castle ▁United , ▁A ston ▁Villa , ▁Ful ham , ▁Queens ▁Park ▁R angers ▁and ▁Bright on ▁& ▁H ove ▁Alb ion ▁def ender . ▁▁ 1 2 ▁June ▁ 2 0 1 9 : ▁Tom ▁Tai wo , ▁ 2 9 , ▁former ▁Carl is le ▁United ▁mid f iel der . ▁▁ 1 8 ▁June ▁ 2 0 1 9 : ▁K ris ▁Bo yd , ▁ 3 5 , ▁former ▁Scotland ▁and ▁M idd les br ough ▁stri ker . ▁▁ 2 1 ▁June ▁ 2 0 1 9 : ▁Fernando ▁Tor res , ▁ 3 5 , ▁former ▁Spain , ▁Liverpool ▁and ▁Ch else a ▁stri ker . ▁▁ 2 8 ▁June ▁ 2 0 1 9 : ▁Stuart ▁Lewis , ▁ 3 1 , ▁former ▁Bar net , ▁G illing ham , ▁D agen ham ▁& ▁Red bridge ▁and ▁Wy com be ▁W ander ers ▁mid f iel der . ▁▁ 4 ▁July ▁ 2 0 1 9 : ▁Dor us ▁de ▁V ries , ▁ 3 8 , ▁former ▁Sw anse a ▁City , ▁Wol ver ham pton ▁W ander ers ▁and ▁Not ting ham ▁Forest ▁goal keeper . ▁▁ 4 ▁July ▁ 2 0 1 9 : ▁Ar jen ▁Rob ben , ▁ 3 5 , ▁former ▁Netherlands ▁and ▁Ch else a ▁w inger . ▁▁ 1 2 ▁July ▁ 2 0 1