Defending champions Kazan stayed top of the Russian Premier League despite losing 2-0 at home to Rostov, who have already defeated CSKA and Zenit this season.

Kazan have 21 points from 11 matches, one point ahead of a quartet of clubs sharing second place. However, CSKA Moscow can leapfrog Kazan if they beat FC Moscow on Sunday.

Forward Dmitry Akimov put Rostov ahead beating Kazan goalkeeper Sergei Ryzhikov from close range after a precise Alexander Cherkes cross.

Rostov had a chance to increase the lead in the 44th minute. They were awarded a penalty after a foul by Yevgeny Balyaikin, who was sent off. However, Ryzhikov saved Akimov's spotkick.

Akimov made amends by scoring the second goal for Rostov eight minutes into the second half after another Kazan mixup in defence.

Samara, who were second at start of play, slumped to a 3-2 defeat at Grozny. Romanian striker Daniel Pancu put Grozny ahead with a powerful long-range shot in the eighth minute and then made it 2-0, six minutes before the break.

Samara pulled level through Yevgeny Savin, who scored twice within three minutes after the restart.

But Grozny defender Sergei Bendz netted the winner with a header with six minutes left.