Ex-Bolivia defender Quinteros takes charge of Gremio

RIO DE JANEIRO, Dec. 28 (Xinhua) -- Former Bolivia international defender Gustavo Quinteros has been appointed manager of Gremio on a one-year deal, the Porto Alegre side said on Saturday.

Quinteros replaces Renato Portaluppi, who left the club after its 14th-place finish in this year's Brazilian Serie A championship.

"Gustavo will arrive in Porto Alegre in the next few days to sign a contract that runs u