Celtic have made it through to the last 16 of the Champions League for only the third time.
Manager Neil Lennon said his team had "performed a miracle", beating Spartak Moscow 2-1 on Wednesday.
"No-one gave us a prayer going into this group, but we have qualified and deservedly so," the proud manager said.
Celtic were drawn in a group alongside top teams Benfica and Barcelona, and a Spartak Moscow side that has spent more than £35m on their squad.
Gary Hooper's strike and a Kris Commons penalty gave Celtic the win.
Celtic could face Manchester United in the next round, who qualified despite losing their final match.