St Johnstone were galvanised by their Covid chaos as the loan Ranger helped keep the Perth men on course for a dream double.
Scotland Under-21 man Middleton climbed off the bench to set up Chris Kane for the opener before a stunning free-kick sent them on their way to the final despite Conor McCarthy pulling one back for St Mirren in their Scottish Cup semi-final.Callum Davidson’s bid to add this season’s Betfred Cup to the trophy cabinet at McDiarmid Park was rocked after four players were ruled out as two tested positive for coronavirus and two more forced to self isolate.
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