Brendon Hartley is poised to start the French Grand Prix from𝓀 the back of the grid after Honda confirmed it had to changꦑe all six components on his Formula 1 power unit following an issue during practice on Friday.

Toro Rosso's Hartley was sidelined by an issue in the final 10 minutes at FP2 at Paul Ricard, with the team🔜 moving quickly to investigate the issue.

Honda confirmed via Twitter on Saturday ahead of final F1 practice that it had been forced to chang🦄e all six components on Hartley's power unit, with a penalty sending him to the back of the grid set to be confirmed by the FIA later today.

The power unit will be the updated-spec that made its debut in Canada, where Hartley qualified 12th be🐈fore crashing out on the first lap following a clash with Lance Stroll.

Update - As for the PU issue encountered yesterday in Brendon’s car, we have now sent it back to Japan for further investigation. We have changed all 6 components last night, therefore Brendon will start from the back of the Grid because of the penaltie𒆙s we incurred

— Honda Racing F1 (@HondaRacingF1)

The penalty comes as the latest setback ℱfor Hartley during a tough debut full season that has seen him score just one point through the first seven races, recording a fini🐷sh of 10th in Baku.

The New Zealander's set was thought to be at risk, with Toro Rosso enquiring about the availability of McLaren junior Lance Stroll, but a lack of alternatives for the team combined with an improvement in performance has eased some of the pre🀅ss🏅ure on Hartley.