Scales conceded the penalty which allowed the hosts to take a first-half lead, but made amends after the break by heading Celtic level.
Republic of Ireland defender Liam Scales was on target as Celtic came from behind to claim a 2-1 win away to St Mirren.
Scales conceded the penalty which allowed the hosts to take a first-half lead, but made amends after the break by heading Celtic level.
Yang Hyun-jun then completed the turnaround midway through the second half.
Securing all three points for Martin O'Neill's side.

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