<!--Article Start--> <h3 style="text-align: justify"><strong>Andre Villas-Boas's Russian league leaders Zenit St Petersburg face their first serious test this season as they look to defend their perfect record against FC Krasnodar on Saturday.</strong></h3> <p style="text-align: justify">Reigning champions Zenit have won all four of their Premiership encounters this season to sit top of the table on goal difference ahead of last season's runners-up CSKA Moscow.</p> <p style="text-align: justify">However, Villas-Boas is concerned that new rules, preventing sides from fielding more than six foreign players at any one time, are stopping him from fielding a full-strength team.</p> <p style="text-align: justify">"You know that (Russia's sports minister Vitaly) Mutko has changed the rules a week before the start of the season, so now our best players are sometimes forced to deal with this," the former Porto, Chelsea and Tottenham Hotspur manager said.</p> <p style="text-align: justify">"It's awful, but that's the reality. I think that everyone wants to see the best on the pitch but we have to give this up.</p> <p style="text-align: justify">"Sometimes you have to make sacrifices. But unfortunately that's the reality that we have to adjust to."</p> <p style="text-align: justify">FC Krasnodar coach Oleg Kononov said his side will be better prepared for the clash than they were a week ago when narrowly avoiding defeat in their city derby against Kuban.</p> <p style="text-align: justify">"I was happy when we saved the day in the derby with Kuban as we lacked freshness after an away Europa League qualifier," said Kononov, whose side finished third last season.</p> <p style="text-align: justify">"I hope that the full rest will allow us to play at our best against Zenit."</p> <h3 style="text-align: justify"><strong>CSKA to face Spartak in Moscow derby</strong></h3> <p style="text-align: justify">CSKA will open the weekend schedule on Friday with a clash against Spartak in Moscow's main derby.</p> <p style="text-align: justify">Spartak have 78 wins to their name, the Red Army side have chalked up 64 wins and 36 of their meetings, dating back to 1922, have ended all square.</p> <p style="text-align: justify">CSKA boosted their line-up by re-signing Ivory Coast marksman Seydou Doumbia, twice previously crowned Russia's top scorer, on loan from Roma ahead of the derby.</p> <p style="text-align: justify">"Doumbia is the best forward among those that we could get," CSKA head coach Leonid Slutsky said.</p> <p style="text-align: justify">"His arrival is a serious boost for our attacking line. But the derby with Spartak will definitely be hard. Anything can happen in this match."</p> <p style="text-align: justify">Victory on Friday would not only allow CSKA to maintain their perfect record but would also boost morale ahead of next week's Champions League play-off encounter at Sporting Lisbon.</p> <p style="text-align: justify">Spartak manager Dmitry Alenichev said matches against CSKA are always very special.</p> <p style="text-align: justify">"We are all set to produce our best form and top spirit for Friday's meeting," Alenichev said.</p> <p style="text-align: justify">"Every one of us has a clear understanding of what kind of match it will be. CSKA are currently in top condition and have yet to concede a goal in Premiership matches. But we will give them a battle, that's for sure."</p> <p style="text-align: justify"><strong>By AFP</strong></p> . <!--Article End-->