Fernando Alonso and Stoffel Vandoorne have both been issued 15-place grid penalties for this weekend's race in Azerbaijan, meaning McLaren are set to occupy the back row on Sunday.
Both drivers will take a new MGU-H and new turbocharger - already their sixth such components of the season. With the sporting regulations allowing each driver to use only four of each per year, both Alonso and Vandoorne will drop 15 grid places relative to where they qualify on Saturday.
Vandoorne's penalty may yet be expanded, with McLaren engine partners Honda indicating they may opt to replace further components after second practice.
Alonso and Vandoorne were 17th and 15th fastest respectively in the opening practice session in Baku on Friday morning, both more than 3s off the benchmark pace set by Red Bull's Max Verstappen.
Next Up
Related Articles
POLL: Which team impressed you the most after Day 1 of pre-season testing?
From cutting curfews to grid penalties – 10 rule changes you need to know about for the 2023 F1 season
UnlockedBehind the scenes with Logan Sargeant: Williams’ rookie on his new deal for next year and his goals for 2024
IS it happening 
Rich Text Testing - FORMWEAS-6889 Web