**Fourteen-man Connacht were floored by six second-half tries as Leinster ran out 45-8 winners of a bruising United Rugby Championship derby at The Sportsground.** Connacht had centre Tom Daly sent off in the second minute for a no-arms tackle on Ciaran Frawley, but Tiernan O’Halloran’s try gave the hosts an 8-7 interval lead. Jack Carty, who had kicked an earlier penalty, set up O’Halloran’s score with a pinpoint pass, replying to a converted 13th-minute effort from Leinster winger Rory O’Loughlin. Going up a gear, replacement fly-half David Hawkshaw and captain Luke McGrath crossed after 52 and 55 minutes to give Leinster some breathing space.