Argentine champion Boca Juniors fired head coach Rodolfo Arruabarrena after Sunday’s 1-0 loss to Racing Club left it with just seven points in its first five games. The move comes threedays before Boca meets Racing again in the Copa Libertadores and six days before the “Superclasico” at River Plate. The front-runner to take over as Boca coach is former Columbus Crew starGuillermo Barros Schelotto.