Snowflake Royal Could always make enquiries about emergency loans so we've got one ready to go, leave Andresson out on loan and use one if Southwood gets injured.
Cheapest option
To be honest A Keiren Westwood or Ben Alnwick on a short term contract till the end of the season would make sense, someone who could fill in if needed and not cost a fortune, loans in means their parent clubs always want them to play and this could have an impact on Southwoods development.
I think With Yiadom and Rahman going to AFCON it would make more sense to sign a LB or RB. Or with current injury problems we maybe seeing a lot of Bristow and Araruna in the coming weeks. Andre Wisdom might be worth a punt on a free I am surprised that he has not found a club already.