Proud Ange Postecoglou insists the character and mentality of Giorgos Giakoumakis typifies the gutsy resilience of Celtic.
The Parkhead boss left Tynecastle thrilled after his new-look team grabbed a priceless win over Hearts.
Postecoglou’s men had to survive a late penalty miss from home hitman Liam Boyce to get over the line and stay within four points of the Premiership summit.