George Russell has some very bad news for his Williams teammate.

Prior to Barcelona, following steady complaints by Robert Kubica about differing equipment, the struggling team agreed to swap the pair's respective chassis.

Kubica, having returned to Formula 1 this year after an eight-year absence with permanent arm injuries, did not improve.

In fact, his deficit to Russell in qualifying was a huge 1.2 seconds.

"The changes that we are making are not giving us the results, so it is a bit confusing," Kubica said.

Russell, the reigning F2 champion, offered much different feedback in Barcelona, as he got closer to his rivals than ever before.

"I think we are going in the right direction," he said.

As for the swapped chassis, Russell's news for Kubica was even worse.

"After switching to Robert's chassis, I did not feel any difference," he told the Polish Sports Daily.

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