BUENOS AIRES, Sept 21 (Reuters) - Juvenal Olmos, who was fired as Chile's coach in April, quit Argentine club Newell's Old Boys on Wednesday after only nine games in charge.
'Olmos has just presented his resignation,' said a spokesman for the club, who won the Apertura (opening) championship in the 2004-05 season.
Newell's are 16th in the 2005-06 Apertura with 12 points from seven games and have recorded only one victory.
They were also knocked out of the Copa Sudamericana, South America's equivalent of the UEFA Cup, by local rivals Rosario Central.
Chilean Olmos, who according to media reports fell out with Newell's top player Ariel Ortega, was jeered off the field after a 3-1 home defeat by Arsenal on Sunday.
He was also angry with the club for failing to sign the reinforcements he had requested.
The Argentine season, which is only seven matches old, has already claimed four coaching victims, the others being Leonardo Astrada (River Plate), Gerardo Martino (Colon) and Jorge Castelli (Tiro Federal).
Olmos, a former midfielder, enjoyed quick success after taking up coaching.
He led Union Espanola out of the Chilean second division in his first year in charge in 1999 and then steered them to a fourth-place finish the following season.
Olmos moved to Universidad Catolica in 2001 and won the Apertura the following year.
He was named Chile coach in 2003 but was dismissed with five matches to play in the South American World Cup qualifiers.