One of Rob🦂ert Kubica's major sponsors has confirmed it will talk to Williams about the decision to retire Robert Kubica from last weekend's Russian Gra🧔nd Prix in order to save car parts.

Kubica wasꦍ told to bring his car into the pits one lap after teammate George Russe🐻ll crashed out of the race in Sochi due to a failure on the front of his car.

Kubica had been running 16th at the time, with the team's official comme🧸nt being: "Robert’s retirement was a team decision to conserve parts as we weren’t in contention for points." The Polish driver admitted in the media pen soon after being parked he was uꦯncertain why the decision to retire had been taken.

The call may have landed Williams in hot water with one of its sponsors, though. PKN Orlen is a major backer for Kubica, anꦏd enjoys significant coverage on Williams' car, most notably on the rear wing.

PKN Orlen spokeswoman Joanna Zakrzewska confi🍒rmed via Twitter that th🎐e company would be discussing the reasons behind the decision to retire Kubica in Russia with Williams.

"In connection with the withdrawal of Robert Kubica from Sunday's race as part of the Russian Grand Prix, we have officially asked the ROKiT Williams Racing team for cܫlarification," Zakrzewska wrote.

"Based on them, we will take 💙actions related to the enforcement of obligations under the contract."

Kubica has already confirmed his exit from Willi𒁏ams at the end of the 2019 season, having scored the team's only point so far this year at the German Grand Prix in July.