Neil Lennon tips Leigh Griffiths to make major Celtic impact after personal issues

¢ Griffiths makes competitive return in 2-1 win over Sarajevo• Celtic next face Estonia’s Nomme Kalju in Champions LeagueNeil Lennon senses Leigh Griffiths will make a major contribution for Celtic after the striker completed his comeback against Sarajevo.The Scotland international came on for the last 12 minutes as Celtic won 2-1 to secure a 5-2 aggregate victory in the first qualifying round of the Champions League...