Ipswich have handed German defender Kevin Pezzoni a trial at Portman Road
Pezzoni is looking for a new club after quitting Cologne last month following an attack on him by a group of fans outside his home in the German city.
Ipswich boss Paul Jewell is keen to bolster his defensive options and will have a look at centre-half Pezzoni in training before deciding whether or not to pursue his interest in the 23-year-old.
"He's been training with us or for a week and we know we've got to bring a centre-half in to push Tommy (Smith) and Luke Chambers - and that's what we're going to endeavour to do," said Jewell.
"It's one area we're keen to strengthen and made a few (more) inquiries this week - we're aware we're very light in that area."
Meanwhile, Ipswich have cooled their interest in signing Peterborough forward George Boyd.
The Tractor Boys failed in a bid to sign Boyd on a permanent basis ahead of the August 31 transfer deadline. The long-serving Posh player turned down the move after failing to agree personal terms.
Reports suggested the 26-year-old, who is still on the transfer list at Peterborough, would be allowed to leave London Road now that the loan window is open.
However, Jewell insists any deal for Boyd is no longer a priority.
"[Posh director of football] Barry Fry came on the phone to me last week to ask about George Boyd because I'd made comments in the press about him, but all I'd done was answer a question," added Jewell.
"There might well still be a loan situation, but that's not our priority at the moment."