FT: Cardiff Blues 13 - 22 Leinster
Leinster battled back to secure victory over the Blues at Arms Park this afternoon, after Jarrad Hoeata was sent off just before half time for the home side.
Manoa Vosawai was also sin binned for Cardiff, with indiscipline costing the Pro12 team a chance of moving up the table.
Although Vosawai and a couple of penalties from Gareth Ainscombe had given Cardiff an early lead, the sendings off changed the game with Leinster hitting back with tries from Jimmy Gopperth, Luke McGrath and Tadhg Furlong.