Edinburgh centre Nick De Luca is calling on Scotland to up their performance for the second Test against Argentina in Mar del Plata this weekend. De Luca, who played a significant role in Scotland’s courageous 24-16 win against the Pumas in Tucuman on Saturday, believes Argentina’s understanding will be all the stronger after their first match in seven months and that only improvement on the part of the tourists will end the tour with the crescendo all want.    A crucial tap-tackle on Argentina’s captain and talisman, Felipe Contepomi, by De Luca in the first-half proved something of a turning point, although, modestly De Luca, believed that a five metre scrum in the second-half where the Scotland pack, with Edinburgh’s Allan Jacobsen and Ross Ford to the fore, repulsed Pumas’ efforts to secure an advancing platform, was rather more critical to the eventual victory. De Luca said: They [Argentina] will be hurting. They will come hard and they’ll know the laws slightly better (in Mar del Plata). We will not get as many cheap points and we’ll need to raise our performance. Listen to the full interview with De Luca: