I applied for a UK Standard Visitor visa a couple of months ago and was refused because I did not submit bank statements from the sponsor who had provided me with funds as pocket money/gift. Now, I have to apply for a PLAB visa in February, 2016. I intend to do that on the basis of my bank statements only with no help from a sponsor.

What I need to know is, will the ECO ask for proof of the origin of the previous funds or just consider the statements that I shall provide with my PLAB visa application?