[Behind The Scenes] GD injured his ankle during OOAK WT in Japan 

Cut from Making film of 2013 GD OOAK The Final in Seoul & World Tour DVD
On April 27, 2013, GD was performing in the Kyocera Dome in Osaka, Japan when he injured his right leg. More specifically, he sprained his right ankle but showed his unrelenting fighting spirit by choosing to continue performing that day.
After wrapping up his dome performance he went online and shared, "Today I wrapped up my performance in Osaka, but I got injured on stage. I'm so sorry. I wanted to give you all an amazing show. I'll be sure to get as much rest as I can today and tomorrow you'll see me in a better state! Thank you to those who came to the concert today and stayed until the very end."
Despite needing 2 weeks or so for the sprain to heal completely, GD finished the rest of his solo tour in Japan as planned.