EDINBURGH, SCOTLAND - APRIL 02: Stuart Armstrong of Celtic celebrates scoring his sides third goal with his Celtic team mates during the Ladbrokes Scottish Premiership match between Hearts and Celtic at Tynecastle Stadium on April 2, 2017 in Edinburgh, Scotland. (Photo by Ian MacNicol/Getty Images)

EDINBURGH, SCOTLAND - APRIL 02:  Stuart Armstrong of Celtic celebrates scoring his sides third goal with his Celtic team mates during the Ladbrokes Scottish Premiership match between Hearts and Celtic at Tynecastle Stadium on April 2, 2017 in Edinburgh, Scotland.  (Photo by Ian MacNicol/Getty Images)