Uruguayan side Plaza Colonia completed a Leicester City-like triumph after claiming their first ever top-flight title on Sunday.
A 2-1 win over second-placed Penarol saw Colonia move five points above the Uruguayan giants with one game left in the season.
Miguel Murillo cancelled out Nicolas Milesi's first-minute opener for Colonia, before Alejandro Villoldo sealed the historic win with a 79th-minute penalty.
Colonia were bottom of the Uruguayan second division in October 2014 before an 18-match unbeaten run saw them claim promotion to the top flight.
After finishing 13th in the Apertura, Colonia went on to upstage giants Penarol and Nacional on their way to the Clausura title.
It is Colonia's first top-flight title in their 99-year history, after only being affiliated to the Uruguayan Football Association (AUF) in 2000.
It is also the first time a team outside of Uruguay capital Montevideo has been crowned first division champions.
Colonia are based in Colonia del Sacramento, a city in southwestern Uruguay just 50 kilometres across the Rio de la Plata from Buenos Aires. It has a population of just over 25,000.