Defensive trialist Javan Vidal will not be signing for the Valiants, the club have announced.
Vidal has played in three of Vale’s pre-season friendly games but has not done enough to warrant an approach from the club.
Vale are keen to add another right-back to their squad. They previously allowed Gavin Hoyte to join the side for training but he was also allowed to leave.
There has been no decision on Michael O’Connor, Steve Jennings and Sylvestre Guyonnet, the club’s other trialists, although Adams has expressed an interest in signing both Jennings and O’Connor if the club’s budget allows.