FC Barcelona's heroic comeback win over Benfica in the Champions League on Tuesday could end up being worth over $50 million to the club.

Liverpool became the first team to guarantee a place in the last 16 of the new Champions League format by beating Lille 2-1 on Tuesday, while Barcelona fought back from two goals down to stun Benfica 5-4 in a thriller.

FC Barcelona will look to take a step closer to securing their place in the UEFA Champions League knockout stage when they take on SL Benfica later tonight in their penultimate league phase