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. Last year’s final was a 32-7 win over the Bulls at the Aviva Stadium. “We talked about how good last year was, and finishing this season on a high”, Leinster winger Tommy O’Brien told reporters this week. “Obviously we were so disappointed a couple of weeks ago against Bordeaux, but the one silver lining I guess is that we had a couple of games straight after,” he added. But Leinster must deal with several injury concerns and some stinging criticism of a perceived change from their traditionally expansive, attacking style to a highly structured …