Enstone, England - Nico Hulkenberg will have to measure up against new team-mate Daniel Ricciardo in what could be a make-or-break season for the German driver, Renault team boss Cyril Abiteboul said on Tuesday.
Ricciardo has joined Formula One's fourth best team this year after winning seven races in his career with former champions Red Bull.
Abiteboul said Hulkenberg, out of contract with Renault at the end of the year, would be carefully assessed.
"Irrespective of the performance of the team, his own performance will be directly measured. We all know that, he knows that," the Frenchman told reporters at the launch of the team's 2019 car.
"He's experienced enough in Formula One to see that it's at the same time a year of risk but also one of opportunity.