Sergio Perez will start his Singapore Grand Prix five spots down from where he qualifies this evening as a result of a grid penalty linked to a gearbox change on his Racing Point RP19.
Perez hit the outside wall at Marina Bay's Turn 22 left-hander and while he was able to bring his car back to the pits, despite a broken right rear wheel, his Racing Point crew diagnosed a damaged gearbox.
"After our inspection we found some damage, so we had to change it," said Racing Point sporting director Andy Stevenson, quoted by Motorsport.com.
Toro Rosso's Dany Kvyat also underwent a component change following an oil leak that erupted in FP3.
Ahead of qualifying, the Faenza-based team was hard at work replacing Kvyat's power unit, although the change is penalty-free for the Russian.