Caterham driver Kamui Kobayashi of Japan is pushed back into the garage during the third practice session of the Formula One Australian Grand Prix in Melbourne on March 15, 2014.  IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE   AFP PHOTO / Paul CROCK        (Photo credit should read PAUL CROCK/AFP/Getty Images)

driver Kamui Kobayashi is pushed into the garage during final for the 2014 Australian Grand Prix. (Photo: Paul Crock/Getty Images)

F1 could axe Friday morning practice sessions next year, as teams consider how to cut costs in the absence of a mandatory budget cap.

Although keenly supported by the small teams, and championed by FIA president Jean Todt, the 2015 budget cap was vetoed by the powerful ‘Strategy Group’ teams including grandees Ferrari, Red Bull and Mercedes.

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