UEFA betting on the UEFA Champions League and the UEFA Cup tournaments must always take into account the impact that the first leg of a match up will have on UEFA betting during the second leg of the match up. This two leg format is used extensively throughout the tournaments and can heavily influence the soccer betting lines. If you are aware of the impact that each leg will have on the other, then you will enjoy an advantage in your UEFA betting, but if you are oblivious to this impact then you will find yourself misled by the soccer betting lines.