The Mexican and New Jersey races that currently figure on the 2014 Formula One racing schedule will not make the cut on the final version when it emerges from the FIA World Motor Sport Council in December.

Sources at the Formula One Abu Dhabi Grand Prix have confirmed that Mexico is definitely off. While F1 boss Bernie Ecclestone would not officially confirm to Autoweek today in that the race has been cancelled, he made it clear that the challenges of building a new pit complex in time for next November had proved insurmountable.

Hermann Tilke has been charged with creating the new pit and paddock area, as well as making some relatively minor changes to the layout of the track in Mexico.

With Mexico gone there is now a gap of two free weekends between races at Austin and the season closer in Brazil, which could lead to some reshuffling.

The loss of New Jersey is no great surprise, given that the race was already dropped from this season's calendar and had been given a logistically challenging 2014 date sandwiched between Monaco and Canada. Promoter Leo Hindery has yet to source sufficient financial backing.

“New Jersey won't happen because they still haven't got the finance together for that,” said Ecclestone. “I put it on the calendar because they keep telling me it's all going to happen.”

2014 Formula One Schedule, as released in September

Mar 16: Australia

Mar 30: Malaysia

Apr 6: Bahrain

Apr 20: China

Apr 27: Korea (provisional)

May 11: Spain

May 25: Monaco

Jun 1: New Jersey (provisional) - Now considered to be off the schedule

Jun 8: Canada

Jun 22: Austria

Jul 6: Britain

Jul 20: Germany

Jul 27: Hungary

Aug 24: Belgium

Sep 7: Italy

Sep 21: Singapore

Oct 5: Russia

Oct 12: Japan

Oct 26: Abu Dhabi

Nov 9: USA (Austin)

Nov 16: Mexico (provisional) - Now considered to be off the schedule.

Nov 30: Brazil

Note: Will be made official by the FIA in December.

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