Wednesday’s priority is a centre half as they scour the loan market, Milan Mandaric has confirmed.
The additional defender would be one of a “couple” of players that the Owls are hoping to bring in.
Mandaric told The Star: “We are still looking. We have brought in so many players this year.
“People sometimes think loans are for free but you have to spend seriously on things such as wages and agents’ fees.
“We’re trying to bring in a centre back, in fact a couple of players; three of our centre halves are injured - Kamil Zayatte, Martin Taylor and Anthony Gardner.”
It is hoped that Roger Johnson will be fit for Saturday’s match at Blackpool but Miguel Llera is the club’s only other senior, fit centre half.
Manager Dave Jones has also been looking at trialists and has received loan inquiries about some of his players.
But he will think carefully about letting further players go in view of the current problems.
Thursday is the pre-January deadline for emergency loans but free agents can be signed at any time.
The Owls already have four loan players and only five are allowed in a match-day 18 but this did not deter them from having six at one stage last season.
Striker Caloan Lavery has joined Plymouth on loan until January 1 and played as a late sub in a 2-1 win against Dagenham and Redbridge.