Mercedes drivers have a slightly different view on Massa's move to Williams team.
The final race of the 2013 Formula One World Championship takes place at Interlagos in Sao Paulo on Sunday 24 November.
The team scored 14 points and is now 15 points ahead of Ferrari and 33 ahead of Lotus in the Constructors' standings.
Dr Helmut Marko claims that the two Mercedes drivers together cannot equal Vettel.
This afternoon saw Lewis Hamilton and Nico Rosberg qualify in fifth and 14th places respectively for the United States Grand Prix.
Nico Rosberg is not worried, because next year is a great opportunity where everyone will be put back to zero.
Sebastian Vettel wins Abu Dhabi Grand Prix in another dominant performance.
Webber’s 1m39.957s pole lap, the 13th of his career and his second of this season, means that he equals the pole position record for an Australian, established by Jack Brabham.
Mark Webber stunned the paddock and the Red Bull team by pinching the pole out of the hands of his team mate on the Yas Marina Circuit.
Nico Rosberg and Lewis Hamilton qualified on the second row in third and fourth places for the Abu Dhabi Grand Prix today.
Red Bulls first and second ahead of Mercedes pairing.
Nico Rosberg and Lewis Hamilton completed a total of 125 laps today, equivalent to more than two race distances.
Infiniti Red Bull Racing secures constructors’ championship for fourth consecutive year.
As expected Sebastian Vettel did what he needed to wrap up the Drivers’ title in India.
Nico took the team's 15th front row start of the season - and his sixth - with P2 this afternoon
Red Bull’s Sebastian Vettel the hot lap on the soft Pirelli tyres to nail down his seventh pole of the season.
Vettel in ominous form