Saw most of the Russia v Bulgaria game, it was bit drab to be honest and the goal was somewhat of a freak free kick which the keeper messed up. He did well to stop Dzagoev in the second half who had a good run and shot and Pavyluchenko could have scored following that, Zyrianov had some decent shots from distance. The heat seemed to slow the game down (no idea why they didnt play later in the evening when the sun wouldnt have been as direct), Bulgaria offered very little upfront so it's hard to say how the Russian defence was as it was never really tested.
Highlights are here:
http://www.youtube.com/watch?v=YtmGXqcA7X0
Slovakia highlights here:
http://www.youtube.com/watch?v=o-OZtpUIfnY