CSKA Moscow attacker Ahmed Musa&nbsp; netted his fifth goal in seven games in the <i>Army Team's</i> 2 - 0 home win over Rubin Kazan in the 12th round of matches in the Russian Premier League on Sunday afternoon.<br /><br />In his post match comments, the Nigeria international said he did not understand the opponents' claims that there was biased officiating by the match referee Aleksandr Egorov.<br /><br />''The first penalty goal was decisive. It instilled confidence in us. After that it was easier to score the second goal. Certainly the incident was a penalty offense.&nbsp; I was with the ball in the penalty area, wanted to shoot and was hit in the legs. I do not understand complaints about refereeing. The referee did a good job,'' Musa was quoted as saying by <b>championat.com</b>.<br /><br />The 20 - year -old ex Kano Pillar is playing as makeshift center forward this season as a result of injuries to the team's first choice strikers. <br /><br />Musa is now one of the leading scorers in the Russian championship, and has set his sights on the top scorer award at the end of the season.<br /><br /><i>Championat.com </i>quoted Musa as saying: ''If I keep up the good work, I will try to score as often as possible.''<br /><br /><br /><br />