Daniil Kvyat won't be returning to Formula 1, at least not with Toro Rosso says Red Bull motorsport boss Helmut Marko.
The 23-year-old Russian, who started 72 races in his almost four-year F1 career, has pretty much been on probation ever since he was demoted from Red Bull Racing to the Faenza-based squad in May 2016.
Kvyat was dropped by the Milton Keynes outfit to make way for Max Verstappen. His results with Toro Rosso have been inconsistent, prompting Marko to bench the driver after Singapore this year to evaluate Pierre Gasly.
Kvyat owed his return in Austin with Toro Rosso to the fact that future engine supplier Honda asked Gasly to race in the finale of the Super Formula series in Japan.
Despite the Russin's good showing at the Circuit of the Americas, Toro Rosso confirmed earlier this week the presence of Brendon Hartley and Gasly in Mexico, leaving Kvyat once out in the cold.
"Kvyat will not return again," Marko told Germany's Auto Bild.
"We do not believe he can make the turnaround in the long term."
Marko also confirmed that the Hartley-Gasly pairing would remain in place for the final three races of 2017.
"Gasly and Hartley will finish the season," he said. "Then we'll see what happens."
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