UAE Team Emirates-XRG's Igor Arrieta reacts at the finish line to winning stage 5 of the Giro d'Italia, his first WorldTour win (Image credit: Getty Images) He attacked, he crashed, he went off course, he got back into contention and he won: Igor Arrieta dedicated one of the most memorable stage victories in recent Giro d'Italia history to his three teammates forced to abandon in a mass pile-up early in the race. UAE Team Emirates-XRG's tough start to the Giro began even before the first stage, as one of their GC leaders João Almeida was sidelined from starting due to illness , but much worse was to come. UAE's Giro looked all but wrecked, but on stage 4 Jhonathan Narváez - himself badly injured in the Tour Down Under - provided a major boost for team morale when he claimed a small group sprint victory. And as Arrieta told journalists on Wednesday, the Ecuadorian's triumph acted as the ideal motivation to go for the win himself 24 hours later.…