Lionel Messi versus Vozinha. It is the World Cup battle no-one knew they wanted, but which fans now cannot wait to see.
Argentina and Cape Verde walk out at the Miami Stadium on Friday (23:00 BST).
Arguably the greatest player the world has seen faces a 40-year-old goalkeeper who was a complete unknown three weeks ago.
It encapsulates one of the best stories of this World Cup – Cape Verde, on their World Cup debut, defying the odds to reach the knockout rounds.
No-one gave Cape Verde a prayer against European champions Spain. Yet they drew 0-0.
It was heralded as one of the greatest ever World Cup shocks, and the African nation did not even win.
Then came draws against two-time World Cup winners Uruguay and Saudi Arabia, to qualify for the last 32 in second place in the group.
Next come Argentina. It could be the biggest mismatch the World Cup has ever seen.