http://www.bet365.com/extra/en/promo...play-bet-offer
Place a pre-match bet on the Liverpool v Arsenal game and we will give you a risk free In-Play bet to the same stake on the big match.
To qualify for your risk free In-Play bet, simply place a bet before kick-off, then once the game starts place another bet on any In-Play market. If your FIRST In-Play bet loses we will refund this stake, up to the same value as your largest pre-match bet (max $50*).