 These were his golden years as a player, he helped his team to win back to back Nacionals.After Larrosa left Independiente in 1980 he had a short spell with Vélez Sársfield before joining San Lorenzo.The 1981 season progressed disastrously for San Lorenzo, ending with the club relegated from the Primera for the first time in their history, this catastrophe prompted Larrosa's retirement from football at the age of 34.