Middlesbrough manager Tony Mowbray is hoping to bring Dutch international Romeo Castelen back to the club.
The 29-year-old is a free agent and trained with Boro last week, and played in a pre-season friendly.
The former Feyenoord and Hamburg ace has now returned to Holland, but Mowbray has confirmed he hopes to see him again.
"He's gone back to Holland but I think he'll be coming back for a week or so," said Mowbray.
"He's a very experienced, talented player who hasn't played much football recently. It's just whether we give him that platform to get fit because he has undoubted talent.
"He went for a lot of money to Hamburg from Feyenoord, he's played at a real good level and I can see that in flashes and yet if you're not fit it's very difficult to reproduce that.
"So there's a fair chance he might be coming back to train with us for a week or two and see if we can get him up to speed."
Boro are also hoping to conclude a deal for Swiss goalkeeper Jayson Leutwiler - who has spent all of pre-season with the club.
The 23-year-old is currently with Basel - but they are believed to be happy for him to move on a free.
Leutwiler has been preferred to Spaniard Jacobo Sanz, who also spent time with Boro over the past week.