Russo replaces Vivas at Racing Club
Russo, who steered Boca to the Libertadores Cup in 2007 and Velez Sarsfield to the Argentina league title in 2005, is replacing Claudio Vivas, who was sacked at the weekend after Racing's third consecutive defeat, the sports daily Ole said on its website.
Vivas, a former Argentina national team assistant coach, had only been in charge for 11 matches dating back to November but his team had won only one out of four in this year's Clausura championship.
Racing are in a dangerous position in the relegation averages, a system that takes into account a team's points over the last three years.
Russo's first two matches in charge will be against San Lorenzo and then by bitter rivals Independiente in the Avellaneda derby.