'Immense Celtic showing they can respond to adversity'

Ex-Celtic midfielder Scott Allan says the biggest positive his former side can take from their stellar start to the season is "how quickly they are learning from setbacks". After an opening Champions League win over Slovan Bratislava, a 7-1 humiliation at Borussia Dortmund threatened to derail their European campaign. "Rodgers said they would learn," Allan said on the BBC's Scottish Football Podcast.