Leigh Griffiths hits winner for Celtic against Partick Thistle

Leigh Griffiths came off the bench to spark Celtic into life as the Hoops came back from a goal down to beat Partick Thistle 2-1 in the Ladbrokes Premiership.

Irish striker Conor Sammon, on loan from Hearts, gave the home side the lead from the spot in the 34th minute after defender Mikael Lustig had conceded the penalty.