Nico Rosberg's radio message back to his team said it all as the German lamented losing another pole position to Mercedes colleague Lewis Hamilton in China.

Having shared the front row with the reigning world champion in Australia, Rosberg was shouldered off it last time out in Malaysia, but produced possibly his best qualifying performance of the 2015 season so far to reclaim P2 at the Shanghai International Circuit, improving to 1min 35.824secs on his second run compared to Hamilton's initial 1m 35.782secs effort.

The gap between the two Mercedes was the smallest it has been all weekend, and the fractions involved clearly irked Rosberg as he fumed 'oh c'mon guys' over the radio on his slowing down lap....

Related Articles

"It's only four-hundredths, it's nothing, so I am frustrated because it's so close," he explained later, "Of course, I really wanted to have pole today [and] it's just four-hundredths, which makes it more annoying."

Asked whether he could pin-point anything on his final run that may have helped deny him top spot on the grid, Rosberg admitted that the margin was so small, it could have been anything.

"There is not one specific place," he reflected, "It's just very close. A lap is never 100 per cent perfect and four-hundredths is just the blink of an eye, which makes it even more disappointing."

Rosberg heads into Sunday's Chinese Grand Prix ten points adrift of Hamilton in the standings, and seven behind Vettel, who will line up on the inside of row two for the Shanghai race.

"I'm still confident for tomorrow," he insisted, "I've focused on race pace with my set-up and I know that tyres will be the decisive factor tomorrow, so I will be aiming to put a lot of pressure on Lewis...."