On Wednesday, Argentina’s River Plate will face Mexico’s Tigres in the first leg of the final of South America’s premier club competition, the Copa Libertadores. For Tigres, it’s their first appearance at this stage of the competition and makes them only the third Mexican side to have ever reached the final. River, though, have won the tournament twice before, but they have experienced a great deal of ups and downs since their most recent triumph 19 years ago.