Leinster recorded a routine if hard-fought victory over Dragons to extend their lead at the top of the BTK United Rugby Championship.With most of the front-liners in Ireland camp, it was a second string outfit, who still included seven Irish internationals in their starting XV, that ran in seven tries against a spirited Welsh outfit.The bonus point was wrapped up by half-time, with tries from Harry Byrne (2), Luke McGrath and Rhys Ruddock, but following Jordan Larmour's try in the 47th minute, Leo Cullen’s side went 25 minutes without adding to their score.Rob Russell and Charlie Tector scored late tries with former Munster out-half JJ Hanrahan on the scoresheet with one of two consolation tries for the visitors.More to follow...Leinster: Jimmy O'Brien, Jordan Larmour, Liam Turner, Jamie Osborne, Dave Kearney, Harry Byrne, Luke McGrath; Michael Milne, John McKee, Michael Ala'alatoa, Ross Molony, Brian Deeny, Rhys Ruddock (Capt), Scott Penny, Max DeeganReplacements: Lee Barron, Jack Boyle, Thomas Clarkson, Jason Jenkins, Will Connors, Nick McCarthy, Charlie Tector, Rob RussellDragons: Angus O'Brien, Sio Tomkinson, Steff Hughes, Jack Dixon, Ashton Hewitt, Will Reed, Rhodri Williams (Capt), Rhodri Jones, Brodie Coghlan, Lloyd Fairbrother, Matthew Screech, Ben Carter, Ben Fry, Taine Basham, Ross MoriartyReplacements: James Benjamin, Aki Seiuli, Chris Coleman, Sean Lonsdale, Ryan Woodman, Lewis Jones, JJ Hanrahan, Jordan WilliamsReferee: Mike Adamson (SRU)