
Hardie starred for Raith Rovers after making the brief switch from Ibrox in the second half of last season.
The Kirkcaldy club lost only one of their 12 games with Hardie in the side as the Murray Park graduate netted six goals.
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Hide AdThe 19-year-old will now look to bolster St Mirren’s chances of making the play-offs under the director of former Rangers player Alex Rae.
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