Lokomotiv Moscow increased their lead at the top of the Russian Premiership despite being held to a goalless draw by the hosts Amkar Perm on Sunday.
Lokomotiv now have 44 points from 21 matches and are three points clear of Zenit St Petersburg, who were beaten 1-0 by CSKA on Saturday.
Two other Moscow clubs, Dynamo and Spartak, who take on Anzhi Makhachkala on Monday, share third on 39 points.
Amkar, who are bidding for a European spot, made a lively start, pinning Lokomotiv back, but they were unable to convert their superiority into goals.
After the break, Lokomotiv stepped up their game and created several chances but could not break down the robust Amkar defence.
“It’s very hard to oppose Amkar at Perm as they’re a very physically strong team who are very dangerous especially in dead ball situations,” Lokomotiv manager Leonid Kuchuk said.
“The hosts were more focused from the start, while we had chances after the break but in general the teams looked almost even and the draw looks the fair result of the match.”
In Sunday’s other match, Rubin Kazan, champions in 2008 and 2009, experienced few troubles on their way to a 3-1 home win over Volga Nizhny Novgorod.
Ukrainian international forward Marko Devic, signed in the January transfer window from Metalist Kharkiv, put Rubin ahead in the 14th minute with his first goal in the Russian league scoring from close range.
Dmitry Torbinsky made it 2-0 a minute before the interval when he latched on to Devic’s pass and fired home from five metres.
Rubin midfielder Pavel Mogilevets added a third with 10 minutes to go, while Volga’s Armenian forward Artur Sarkisov rounded off the scoring with a consolation goal in the 82nd minute.