Both semi-final first legs ended in goalless draws at the City Ground and the Madejski Stadium respectively, setting up two nervous nights in South Wales next week as Swansea host Nottingham Forest and Cardiff entertain Reading for the right to progress to a Wembley final.
And it is the two home sides who are now favourites with the oddsmakers who believe Swansea's performance with ten men on the banks of the River Trent makes them the most likely to go on and win promotion.
They get a 15/8 quote with Cardiff a best price of 5/2, Reading at 10/3 and the Reds 9/2.
888sport make Swansea 4/9 to progress through Monday's second leg with Forest priced at 13/8 and are offering a free bet to new customers at http://promo.888.com/2010/888sport/lp/20Pound/lp.htm?sr=176432