Great Britain lost their second straight basketball game of London 2012, beaten 67-62 by Brazil.
After an opening defeat by Russia, GB needed a win to boost their chances of reaching the knock-out stages.
An energetic start and a three-pointer from Mike Lenzly in the dying seconds of the opening quarter helped the home side take an 11-4 lead.
But Brazil fought back to 27-27 by half-time, before capitalising on GB's high number of turnovers.
GB guard Nate Reinking scored 13 points with Brazil's Tiago Splitter finishing as the highest scorer of the match with 21 points.