System Bet, 09.12: Barcelona to win vs Bayer Leverkusen! Posted on December 8, 2015 by Combo Bets System Bet Predictions, 09.12 Gent v Zenit: 1 @ 2.37 Bayer v Barcelona: 2 @ 2.05 Chelsea v Porto: X2 @ 1.88 Olympiacos v Arsenal: 1X @ 1.88 System Bet: Doubles (2/4) Total Odds: 17.17 @ BET365 Offer: £200 (100% Deposit Bonus)! FacebookTweetPin