Port Vale sign McDonald, Green, James and Roe
Port Vale have announced four new signings have agreed deals with the club.
19 year-old Sheffield United defender Kingsley James has agreed a 12-month contract while his former teammate left-back Phil Roe, also 19, signs for six-months.
Centre-half Clayton McDonald, 22, has also agreed to join for six months after leaving League One side Walsall.
Left-back Mike Green, 22, joins from Zamaretto Premier side AFC Totton on a two-year contract.