Jlloyd Samuel is set to hold talks with Sam Allardyce regarding a possible deal after impressing in West Ham United's friendly win over Real Zaragoza.
The full-back is available on a free transfer after leaving Allardyce's former club Bolton Wanderers and featured in Saturday's 2-0 success against Zaragoza.
He could now become Allardyce's fifth signing of the summer after assistant manager Neil McDonald confirmed discussions are set to take place.
"First impressions were really good," McDonald told the club's official website.
"Jlloyd has got a good pedigree and a good CV, so we've got him in, trained him for a couple of days and got a good look at him on Saturday.
"He's enjoyed what he's done and we've enjoyed having him, so I'm sure the manager will sit down with him and see what the situation is later on at the start of next week."
Allardyce has already been reunited with Kevin Nolan, Matt Taylor, Abdoulaye Faye and Joey O'Brien after working with the quartet at Bolton, and the latter completed his move to Upton Park prior to the Zaragoza encounter.
McDonald added: "I think Joey is a decent defender and very good on the ball as well.
"He's big and strong, so he's a great addition and gives us some fantastic competition for places, which is great."