I've received the following email from Betfair:
For the closing stages of what has been an enthralling Wimbledon Championship so far, we're giving you a risk free bet.
What are you waiting for? Place a bet of at least £10 on Tennis Exchange or Multiples markets between 30/06/11 and 03/07/11 and we'll refund your losses up to £10*. Your first bet counts so place it carefully!
I'm not into tennis, so I've no idea who or what to back!
Any suggestions?
Thanks
Jeff