Reigning champion Neil Robertson fell to a shock 6-2 defeat by amateur John Astley in the first round of the UK Championship in York.Apart from a break of 124 in the sixth frame, the Australian showed little of the form that helped him win the English Open earlier in November.Astley, 32, grew in confidence as the match progressed and made breaks of 74, 83 and 119 on his way to a famous win.Judd Trump and Yan Bingtao also advanced with comfortable victories.As did Mark Allen who reeled off five frames on the trot to claim a 6-2 win over Michael Judge.World number two Trump progressed into the second round with a routine 6-1 win over world seniors champion David Lilley.Trump, crowned UK champion in 2011, raced into a 3-0 lead before Lilley made a break of 59 to pull a frame back.However, a missed black in the next frame saw his opportunity of applying any pressure gone, with Trump having the better of two scrappy frames before closing out the match with a stylish 132 clearance which