 Complete the following phrase:  Milkins reached the second ranking event semi-final of his career in the 2012 World Open. He qualified for the tournament with 51 and 50 wins over Sam Craigie and Ryan Day respectively. He was required to play in a wildcard round once at the event in Haikou, China, where he beat amateur Thanawat Thirapongpaiboon 53 to set up a first round encounter against Stephen Maguire which Milkins won by another 53 scoreline.ref name201112ref He defeated Jin Long 52, before dispatching reigning world champion John Higgins 53 in the quarter-finals. However, Milkins lost his last 4 encounter with Stephen Lee 26 and admitted after the match his performance levels had dropped from his previous displays in the tournament. Milkins also reached the second round of the 