Biography
Humberto Sierra Humberto de Jesús Sierra Sánchez (born July 21, 1960, in Envigado, Colombia) is a Colombian football coach and former player who played as a midfielder.
Attribution — CC BY-SA 4.0
This content is based on material from Wikipedia, released under the CC BY-SA 4.0 license.
Original sources:
https://en.wikipedia.org/wiki/Humberto_Sierra
References
- "Humberto Sierra." Wikipedia.