Celtic made it eight wins from nine Scottish Premiership games so far this season with victory over a spirited St Johnstone side on Saturday afternoon, albeit with the Hoops producing a far from convincing display in what was a dramatic encounter in Perth.

The Parkhead outfit had taken a deserved lead just before the break after opposition defender Andy Considine had turned in the lively Sead Haksabanovic's cross, although the visitors were then made to pay for their profligacy in front of goal as Callum Davidson's men looked to have snatched a point in added time through Alex Mitchell.

Facing another setback in a week in which the Hoops had suffered defeat at the hands of RB Leipzig and seen captain Callum McGregor struck down by injury, Ange Postecoglou spared their blushes to secure the win right at the death through striker Giorgos Giakoumakis.

The Greece international expertly turned home Alexandro Bernabei's cross in the 96th minute to spark bedlam among the away support, with that effort having capped a fine first league start of the season for the 27-year-old.

The former VVV-Venlo man - who arrived in Glasgow on a £2.5m deal last summer - has largely been reduced to a bit-part role during his time at the club to date, with teammate Kyogo Furuhashi so often the preferred pick to lead the line.

As yesterday's display illustrated, however, the 6 foot 1 powerhouse routinely delivers the goods when he is handed a chance to impress, having scored 17 goals in just 29 appearances in all competitions during his debut campaign last term.

While restricted to a substitute role so far this season - with that latest triumph only the striker's third start of the campaign across all fronts - the 11-cap brute has showcased his finishing prowess when he has been on the pitch, with four goals in just 11 appearances thus far.

The £3.6m-rated ace - who previously netted 29 goals during his final season in the Netherlands - has more to offer than just simply putting the ball in the back of the net, however, having notably won four of his seven duels on Saturday and won four fouls for his side to showcase his presence in leading the line.

While the aforementioned Haksabanovic was arguably the star performer on the day - with the Montenegro international recording the highest match rating of 7.7, as per SofaScore, and having been dubbed a "threat" by Postecoglou  - it was Giakoumakis who ultimately proved the real, headline-grabbing hero.

As journalist Josh Bunting stated, the £23.5k-per-week ace is a "vastly underrated footballer", with it perhaps time that he earns greater plaudits having yet again proven his worth to the Bhoys.