In-form Andy Murray made it 18 games unbeaten by beating Andy Roddick 6-2, 6-2 at Bercy Arena here on Thursday to reach the quarter-finals of the Paris Masters. Murray had spoken of the importance of "getting inside" Roddick's mighty serve and he broke the American in the opening game, before securing a second break with a stinging cross-court forehand to go 5-2 up. A similar stroke brought him the set and Roddick wilted in the second set, smashing his racquet into the ground at one stage, as his opponent closed out a straightforward 62-minute victory. Murray, the second seed, will face either Czech fifth seed Tomas Berdych or 11th-seeded Serbian Janko Tipsarevic for a place in the last four. World number one and top seed Novak Djokovic meets Serbian compatriot Viktor Troicki later on Thursday, while third seed Roger Federer -- who has never reached the final at this event --