DUBLIN, June 18 : Home advantage makes Leinster overwhelming favourites to retain their United Rugby Championship title as they host South Africa’s Bulls in a repeat of last year’s decider. Friday’s clash at Croke Park offers the Irish team a chance to make up for the disappointment of losing last month’s European Champions Cup final to Bordeaux Begles in Bilbao, where they were thoroughly outplayed. Leinster are the most successful side in the URC and are chasing a record-extending 10th title.