Andy gets rolling

Andy Roddick enjoyed an easy ride into the second round of the Shanghai Masters Tuesday as German Philipp Kohls-chreiber was unable to continue in a 6-3, 2-1 victory for the American tenth seed.
"We've all been on the bad side of having to pull out of a match, it's not fun," said Roddick, who lost his opening match here in 2009 and has tumbled out of the top 10.
"But I thought I hit the ball well in what we did play today. I started to hit pretty well last week also, even though I lost the match to Gael [Monfils in Tokyo].
"I'm glad that I can get through today and keep trying to build on it."
Chinese tennis showed robust health as unheralded Bai Yan, number 465 in the world, upset veteran Czech Radek Stepanek 6-3, 6-4 to move into a match with fourth seed Andy Murray.
Bai, 21, is riding high from titles at a pair of low-level Chinese Future events in recent weeks while Murray is struggling to escape another slump after a quarterfinal loss last week in Beijing against Ivan Ljubicic.