fraudulent claim

hi i was recently involved in a bump on a roundabout, which i feel wasnt my fault even though my company have told me it is. anyway the reason i am posting is because the other person is claiming for a leg injury which i feel is fraudulent as i hit the passenger side of the vehicle at no more than 2 mph. i have told my insurance company i am willing to pay for the costs to fix his car but no way am i going to let him claim, because appart from anything else i will lose my no claims bonus.
any help would be very grateful as i am booked in to see a solictor, but not for 3 weeks. thanks