The México Legends For PES21 by MictlanTheGod includes:
Claudio Suarez, Jorge Campos, Leonardo Cuellar, Zague, Rafa Marquez and Hugo Sanchez by MictlanTheGod.
1. Extract the archive with winrar and copy Mexico.cpk to Pro Evolution Soccer 2021\download .
2. Open and select DP in DpFileList Generator;
3. Add Mexico.cpk as last checked, generate DpFileList and play!