Fifth seed Robin Soderling booked his second-round place on the opening day's play at the Thailand Open. The Swede overcame a sluggish start in Bangkok to beat Robin Vik of the Czech Republic 4-6 6-1 6-2.
Thai hero Paradorn Srichaphan begins his title challenge on Tuesday, while Brit Andy Murray is also in action against George Bastl.
Top seed and defending champion Roger Federer and second seed Lleyton Hewitt open their campaigns on Wednesday.