Russia vs. Georgia

The grudge: Russia invaded former-Soviet-state-cum-Western-ally Georgia earlier this month, ostensibly to protect its citizens in the breakaway regions of South Ossetia and Abkhazia. After finally agreeing to a cease-fire, Russian troops still haven’t pulled out of Georgia proper and are setting up a “buffer zone” despite protestations from NATO.

The competitors: Georgia’s Andrezza Chagas and Cristine Santanna hit the sand against Alexandra Shiryaeva and Natalia Uryadova of Russia in beach volleyball on Aug. 13.

The result: The Georgians (above) won revenge for their country in three sets. The Russians, however, complained after the match that the two Georgians were actually Brazilians who had only recently obtained Georgian passports to play in the Olympics.