29 May Monaco
Hamilton is penalised twice after a chaotic race in which Massa is forced to retire following a clash with the Briton's McLaren in the tunnel. "I was quite a lot quicker than Massa, I went up the inside – and he turned in," said Hamilton. "I get the penalty, which is usual. He held me up in qualification, I got the penalty. He turned in to me, I got the penalty"
10 July Silverstone
Hamilton holds off Massa in a fierce battle for fourth place at Silverstone, with the pair touching on the final lap and Hamilton's McLaren losing part of its front wing. Massa later shrugs off the incident and denies that Hamilton was over-aggressive
24 Sep 2011 Singapore
The pair clash in the final qualifying race as Hamilton forces his way past the Brazilian's Ferrari. "I didn't understand what he wanted to do," said Massa. "I think he didn't use his mind. Again"
25 Sep 2011 Singapore
Hamilton is given a drive-through penalty after crashing into Massa, who later interrupts the British driver's television interview by tapping him on the shoulder. "Don't touch me, man," says Hamilton, before storming off. Massa later says: "When he gets in the car, he doesn't think. I talked to him, but he doesn't listen"
9 Oct 2011 Japan
The feud continues at Suzuka, where the pair clash while going through the chicane. "I think the footage speaks for itself," said Massa. Hamilton escapes punishment this time and comments: "There was no bad intention towards Felipe, I've got the utmost respect for him"
30 Oct India
The pair collide on lap 24. This time Massa is hit with the drive-through penalty for causing a collision. "Felipe just turned in on me," Hamilton says into his radio. "We saw it as well," respond the McLaren team
