Currently, England is the only one of the home nations that will definitely take part in next year’s World Cup, but the two Irelands still have a chance too.
Northern Ireland play the first of two legs against Switzerland tonight at Windsor Park, in their attempt to get to their first World Cup since 1986. Given that the Swiss are the highest placed team in the play-offs it will be no easy task.
The second leg takes place on Sunday in Basel.
Northern Ireland v Switzerland is on Sky Sports Main Event at 19.00 (kick-off 19.45).