Real Madrid, AC Milan and Bayern Munich clinched their places in the next round of the Champions League on Tuesday.The trio, European champions a total 20 times between them, advanced alongside CSKA Moscow after their final group matches.Cristiano Ronaldo scored twice to help record nine-time European champion Madrid win 3-1 at Marseille and take Group C from Milan, which needed a penalty by Ronaldinho to equalize for a 1-1 draw at FC Zurich.Bayern advanced behind already-qualified Bordeaux in Group A with a 4-1 win at Juventus that eliminated the Italian side, while CSKA Moscow won 2-1 at Besiktas.Michael Owen scored a hat trick to give Manchester United a 3-1 win at Wolfsburg to take first place in Group B from CSKA and knock out its opponent. But CSKA’s place may be in doubt after UEFA said two of the Russian team’s players failed doping tests after a 3-3 draw against Manchester United last month.UEFA will announce the result of its investigation on Dec. 17, the day before the draw for the next stage.Ronaldo put Madrid ahead in the fifth minute with a 30-meter (yard) free kick before Marseille playmaker Lucho Gonzalez leveled from close range in the 11th.Madrid defender Raul…