Daniel Ricciardo says he would need a "helping hand" to fight for victory in the Belgian Grand Prix, despite a strong start to the weekend by Red Bull.
The Australian and teammate Daniil Kvyat were Mercedes' closest challengers in second practice, finishing third and fourth respectively.
While Ricciardo expects qualifying to be very close, he reckons a podium finish is more realistic for Sunday.
"It's going to be closer tomorrow, but to win I think we'd need a helping hand again," said Ricciardo.
"A podium would be nice. Let's see how it goes tomorrow. I think we'll close up a lot more.
"It's nice when you see it's close. You put the perfect lap together and you know one tenth can move you up two or three positions. It's fun."
Today's performance comes after Ricciardo and Kvyat scored their best result of the season in Hungary, where they finished third and second respectively.
The Australian Red Bull driver says the recent form shows the team has been finally getting on top of its car.
"We'll see tomorrow. I think if we stayed more or less here, even top five, it shows we are starting to really understand the car a bit more.
"I'd say this year we have a more difficult chassis to balance, but it seems like now we are starting to get on top of it and you can see the chassis is strong and the car is good."