MONTREAL, Canada - The Formula 1 championship has been riveted on a feud between title contenders Nico Rosberg and Lewis Hamilton.After the 2014 Canadian GP on Sunday (June 8) the Mercedes team mates have another rivalry to worry about.After a difficult start to the 2014 season Red Bull returned to the top of the podium when Daniel Ricciardo claimed his maiden F1 win bringing Mercedes' perfect start to the season to an end after six consecutive victories and five straight one-two finishes.'SENSATIONAL JOB'While the build-up to the Canadian GP was dominated by talk of a spat between the Mercedes drivers, Red Bull team principal Christian Horner was warning that his team was not yet ready to throw in the towel and backed up the bravado with Ricciardo's win and third finish from quadruple World champion Sebastian Vettel.For the first time this season Mercedes faced real adversity as Hamilton was forced out after 46 laps with brake problems while Rosberg struggled with power problems half way through the race and secured second.Mercedes team principal Toto Wolff said: "Now we will stick together as a team, analyse and understand what happened and come out of this situation even stronger. I feel very sorry for Lewis."His retirement was not his fault in any way and it is something the team has to take on the chin. Both drivers were doing a great job. Nico did a sensational job to get the car home, and it was a fantastic piece of damage limitation given how much power he was giving away to the other cars."Mercedes also remains in firm command of the Constructor's standings leading with 258 points almost double of Red Bull on 139.Stay with Wheels24 for the 2014 F1 season – fresh reports every day.