Wales are keeping the ball easily but only Ramsey's long-range effort has caused problems so far.
The Republic Ireland have to beat Wales tonight if they are to have any chance of making it to the World Cup. Victory there will send the nation to its first World Cup since 2002. Updates from now on will be with the minute of the match.
1930: Just 15 minutes to go until kick-off and a cracking atmosphere in Cardiff is already starting to build.
It is an opportunity he does not intend to spurn as players who have always been labelled the "Golden Generation" attempt to follow reaching the semi-finals of Euro 2016 by securing the nation's first appearance at a World Cup for 60 years. With only eight of the nine group runners-up going through to the elimination round the result in Cardiff could be pivotal for both sides.
Wales require a win to ensure their spot in the World Cup playoffs and should be safe with a draw.
If Group D table-toppers Serbia, who host Georgia this evening, lose for the second consecutive game, whoever wins the crunch clash between Wales and Ireland will secure an automatic spot in next year's footballing showpiece in Russian Federation. But it may not be enough for a play-off place.
Republic captain Seamus Coleman had his leg broken by a challenge from Wales defender Neil Taylor in the goalless draw and has not played football since.
Wales has been a very solid team in these qualifiers, now second in Group D with 17 points.
Switzerland lead by three points at the top of Group B but Portugal have a better goal difference so a win for Cristiano Ronaldo's side will see them top the group.
How can I watch Wales vs Ireland? However, the sides trudged back to the dressing rooms with the scoreline goalless and everything still to play for.
1853: Wales manager Chris Coleman arriving at the Cardiff City Stadium.
The hosts looked to pile on early pressure and Hal Robson-Kanu - replacing Sam Vokes in Coleman's only change from the 1-0 victory over Georgia - headed a delivery from Joe Ledley narrowly off target from the near post in the third minute.
What about the Republic of Ireland? Harry Arter comes in for the Norwich City playmaker, while Callum O'Dowda also drops out.