The second legs of the World Cup qualifier play-offs take place tonight with Switzerland facing Northern Ireland St Jacob Park in Basel and the Swiss are favourites to qualify for Russia 2018 having won the first leg 1-0. However, the Swiss winning tonight is far from a certainty and with everything still to play its worth opposing them not to win tonight. The other World Cup qualifier play-off second leg is between Greece and Croatia in Greece and with Croatia leading 4-1 on aggregate they look like a safe bet to qualify for Russia 2018 tonight.