Haining Joins 'Pool on Trial
And after that brief spell in Scotland, he looks set to ply his trade in England once again.
The Seasiders are in need of a new defender after the sale of Shaun Barker to Derby County for £1m.
It was thought that Neal Eardley would be the man to replace Barker, with right back Alex John-Baptiste being moulded as a centre half but taking Haining on trial might indicate a change of tact from the manager.
'Pool have confirmed their squad for the game this evening, which includes two other trialists who both played in the 1-1 draw at Rochdale on Saturday, but no new signings.