MOSCOW, June 16 (Reuters) - Champions CSKA Moscow lost valuable points for a second consecutive week after being held to a 0-0 home draw by Russian Premier League strugglers Tom Tomsk on Saturday.
CSKA were hoping to redeem themselves following a 4-0 thrashing by Luch Vladivostok last Sunday but could not penetrate the Siberian side's disciplined defence.
Big spenders Zenit St Petersburg failed to capitalise on CSKA's stumble as they drew 2-2 at FK Khimki.
After handing CSKA their biggest defeat in a decade, 10th-placed Luch recorded a 3-0 victory over Russian Cup winners Lokomotiv Moscow.
The club from the eastern port city of Vladivostok, seven time zones and more than 15,000-km from Moscow, have scored seven goals in two games after finding the net only five times in 11 previous matches.
CSKA lead second-placed Zenit on goal difference, with the two teams on 21 points from 13 games.
Spartak Moscow, on 20, will go top if they beat city rivals FK Moscow on Sunday.