Again big changes after the first legs played, above is the "before first leg" here's the latest after Chelsea got a draw in Frankfurt but with the all important away goal (Pedro!), and Arsenal added a late home goal for a solid 3-1 win over Valencia: Chelsea 19/20 so 0.95 payoff to win; SPI says 70% to advance, 42% to win it all. Basically the computer wasn't too wowed by the draw but the bookies think it is over for Frankfurt. Arsenal 2.1:1 payoff, 80% to advance, 35% to win. Here the opposite happened bookies only somewhat impressed, computer very impressed. Valencia 7.5:1 payoff, 20% to advance, 10% to win FRANKFURT 12:1 payoff, 30% to advance, 14% to win -- this is the only bet to make per computer.