Kun Aguero and Radamel Falcao face off on Wednesday at Vallecas, in a battle of two of the best goalscorers in recent football history. Two football legends who both played at Atletico Madrid.
Kun was the first to arrive in Spain. He signed for Atletico at 17, staying there until 2011.
Aguero then signed for Man City for 40 million euros, similar to the 45m that Falcao, his replacement, cost Atletico, from Porto.
The Colombian left for 60m euros to Monaco and he later went on loan to Man United and Chelsea without success.
It was when Falcao was at Monaco he faced off with Kun at City in the Champions League quarter-finals. City won 5-3 with a goal from Kun, while Falcao hit two.
Falcao was out for the return, with Monaco winning 3-1 and turning the game on its head.
Kun is 33 now and the Tigre is 35, both veterans of their art.