Lewis Hamilton and Nico Rosberg have for now confined their championship battle to a squabble over a dinner bill.
World champion Hamilton, 17 points behind and five grid spots down in Shanghai after a gearbox change, pointed the finger at his Mercedes teammate after the high-profile gathering of Formula 1 drivers for dinner in China.
"Someone said 'Let's share the bill', so 18 receipts, 18 credit cards, it was the most ridiculous thing I have ever seen," said Hamilton.
He said that he thinks "Nico" was the one who made the call to split the bill.
"Really? Interesting," Rosberg told reporters when asked about Hamilton's claim.
"From what I can remember, the hidden agreement usually is that the world champion pays, but that just might be my opinion," the German hit back.
The pressure is ramping up as the silver-clad pair's battle enters its third round in China, but Hamilton thinks that his penalty means Rosberg will have an "easy" weekend.
"I just want to enjoy every moment," Rosberg said when asked about what will happen this weekend. "I am only looking at myself and I'll take it step by step."
The Mercedes pair achieved a one-two in this morning's first practice ahead of the Chinese Grand Prix.
