Former Sheffield United goalkeeper Paul Gerrard has returned to Bramall Lane to train with The Blades.
Neil Warnock is looking for more options between the posts, with regular number one Paddy Kenny sidelined with a thigh injury and Ian Bennett picking up a knock in Saturday's 2-1 defeat to Reading.
He has decided to run the rule over Gerrard after learning that the 33-year-old remains without a club following his summer release from Nottingham Forest.
"We've not been able to find a third goalkeeper that we have been looking for," Warnock explained.
"I know Paul, he's been with us before, and it seemed silly that he is not training with anyone, so I felt it would help both him and us if he came up for a couple of days and had a chat with us.
"It's a case of nothing ventured, nothing gained. I've not seen him yet, so if anything is to happen then it will depend on his condition."
Gerrard spent eight years at Everton before joining Forest on a free transfer in 2004.
Whilst under contract at Everton in 2003 he was loaned out to Sheffield United and made 16 appearances for The Blades.
United midfielder Michael Tonge, meanwhile, is to have a scan on his ankle injury and could be ruled out for as long as six weeks.
"We're hoping that's not the case once the surgeon has seen him after the scan" worried Warnock.
"I thought he was going to be fit for Saturday's game, only to be told he might miss a few weeks. We just don't know at the moment.
"The problem is he's taken a whack on the joint, it's produced a little flaky piece of bone, and occasionally one jams in the joint.
"If that happens and you can't free it then it has to be flushed out, so we will have to wait and see what the surgeon says."