Table:
text: George Sotiropoulos
Mixed martial arts record
Mixed martial arts record
Res_ Record Opponent Method_ Event Round Time_ Location_
Win 12-2 Joe Stevenson Decision (unanimous) UFC 110 3 5:00 Sydney, New South Wales , Australia
Win 11-2 Jason Dent Submission (armbar) UFC 106 2 4:35 Las Vegas, Nevada , United States
Win 10-2 George Roop Submission (kimura) UFC 101 2 1:59 Philadelphia, Pennsylvania , United States
Win 9-2 Roman Mitichyan TKO (punches) UFC Fight Night: Florian vs Lauzon 2 2:24 Broomfield, Colorado , United States
Win 8-2 Billy Miles Submission (rear-naked choke) TUF 6 Finale 1 1:36 Las Vegas, Nevada , United States
Win 7-2 Jung Hwan Cha Submission (armbar) Spirit MC 11: Invasion 2 3:27 Seoul , South Korea
Loss 6-2 Shinya Aoki DQ (groin strike) Shooto 2 0:05 Yokohama , Japan

Question: When was Shinya Aoki George Sotiropoulos' opponent?