Chang blamed breezy conditions for some of the erratic play in his match with Oncins , who had beaten him in the round of 32 at the 1992 Barcelona Olympics .
<response> <person>Chang</person> blamed breezy conditions for some of the erratic play in his match with <person>Oncins</person> , who had beaten him in the round of 32 at the 1992 <location>Barcelona</location> <misc>Olympics</misc> . </response>