Lewis Hamilton put Mercedes back on top with a win at the Chinese Grand Prix on Sunday in Shanghai, but it may have come at a cost: another schism with teammate Nico Rosberg.
Hamilton made sure there would be no repeat of Ferrari's surprising win two weeks ago at the Malaysian Grand Prix, conserving his tires to withstand a challenge by the Italian team's Sebastian Vettel and easily capture his fourth Chinese Grand Prix and the 35th win of his career.
Rosberg finished second again and angrily accused his teammate of holding him back in the race.
Hamilton's tire-conservation strategy ensured he could open a sizable lead over Vettel after the second pit stop, but Rosberg said at a tense news conference afterward that Hamilton's pace allowed the Ferrari driver to stay close to him and caused his tires to wear by the end of the race.
"It's just now interesting to hear from you, Lewis, that you were just thinking about yourself with the pace in front and unnecessarily that was compromising my race," he said. "It was unnecessarily close with Sebastian as a result and it cost me a lot of race time."
Hamilton responded by smiling and saying he didn't try to impede his teammate.
"It's not my job to look after Nico's race," he said. "My job's to manage the car and bring the car home as healthy and as fast as possible, and that's what I did."
Hinchcliffe wins Indy Grand Prix
• James Hinchcliffe cruised to what may go down as the easiest victory of his IndyCar career at the inaugural Indy Grand Prix of Louisiana in Avondale. Hinchcliffe pitted only once and spent much of the race leading the field around the NOLA Motorsports Park under a full-course yellow flag. Twenty-five of the 47 laps were run under caution. Helio Castroneves finished second and James Jakes third.