The towering striker hit a brace from the bench on a memorable debut which drew high praise from most on-lookers.
His half-hour cameo ranks up there with the most promising starts to life in Scotland, but it doesn’t always go so well.
Inspired by the Jambos’ new hero we took a look at some of the best – and some of the worst starts in Scottish football.
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1. Great start
Paul Hartley: Aberdeen midfielder kicked off his Dons career with a debut hat-trick of penalties against Hamilton in 2010. Photo: SNS Group Gary Hutchison
2. Debut disaster
Joey Barton: Much build-up but Englishman failed to deliver in a short time at Rangers and was even nutmegged on his debut by Ali Crawford against Hamilton. Lasted just three months with Mark Warburton's team. Photo: SNS Group Rob Casey
3. Great start
Mark Oxley: League debuts don't get much more memorable than this - the Hibs goalkeeper scored with his own clearance in a 2-1 win over Livingston in 2014. Photo: SNS Group Rob Casey
4. Debut disaster
Roy Keane: Move to his boyhood favourites didn't turn out too well for the legendary Manchester United midfielder, and Clyde's young guns provided a Scottish Cup shock on his debut in 2006. Photo: SNS Group Bill Murray