The FIA has confirmed both Alexander Albon and Carlos Sainz will change elements of their power units ahead of this weekend's Austrian Grand Prix, with grid drops set to follow.

Albon was known to be taking Honda's updated 'Spec 3' power unit in Austria after Toro Rosso teammate Daniil Kvyat took his penalty to make the change in France last weekend, with the team eager to avoid two lots of penalties.

Albon will take a new internal combustion engine, turbocharger, MGU-H and MGU-K for this weekend, going above his season limit for all of the parts. As a result, he will drop to the back of the grid.

The Toro Rosso driver will be joined at the rear of the field by McLaren driver Sainz, who has also taken a number of updated parts on his Renault power unit for the weekend.

Sainz has a new has a complete new power unit for the weekend, taking an energy store and control electronics on top of an internal combustion engine, turbocharger, MGU-H and MGU-K.

The only other power unit element change confirmed after FP1 is a new MGU-K for Mercedes driver Valtteri Bottas, who moves onto his second part of the season.

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