Image source, Reuters

The visitors on top now.

Callum Robinson hits a free-kick that deflects wide for a corner. Luxembourg get the initial delivery clear but Matt Doherty wastes good territory by smashing a shot off target.

Shane Duffy turns away in disgust before jogging back to his own half.

Chiedozie Ogbene is causing bother. He's quick and direct and has the Luxembourg defenders worried every time he gets the ball at his feet with space to run into.

Was that their chance?

After 15 minutes of backs-to-the-wall defending, Emil Forsberg breaks forward for Sweden.

The RB Leipzig man drives the ball to the edge of the Spanish box before curling a shot narrowly wide.

That's a let off for Spain.

Image source, Reuters

Cristiano Ronaldo - not mentioned this name much yet. The Manchester United forward has the chance to put an end to Serbia's hopes with a free kick but he blasts it over the bar.

Appeals for a penalty for Ireland now.

Stephen Kenny is waving his arms on the touchline. He's convinced. It is a challenge on Adam Idah in the box that sends him spinning to the turf. No penalty on the field or in the eyes of VAR, either.

I tell you what, Serbia have dusted themselves down and are looking dangerous now with Dusan Vlahovic looking a real menace.

A brilliant first touch by the Fiorentina striker brings the ball under control inside the box before he hammers a great strike onto the bottom of the post with the goalkeeper beaten.

Luxembourg have a hittable free-kick after Gerson Rodrigues is tripped by Shane Duffy.

Danel Sinani does hit it, but into the wall. Poor.

This doesn't feel like a dead rubber. There are challenges going in and two sides looking to get on the front foot.

From a free kick Nikola Milenkovic hooks the ball into the net - nice finish - but the whistle had long since been blown for a foul inside the box.

Almost the perfect goal.

Spain's possession has Sweden in a twist with the ball ending up with Pablo Sarabia.

The forward cuts on to his left and curls the ball narrowly wide of the far post from range.

The keeper had no chance if that was on target.

Serbia, unsurprisingly, seem a bit stunned by that early Portugal strike. They had clearly set up to get at their opponents early but that goal and a raucous home crowd has unsettled them.

The exciting Dusan Vlahovic, preferred in the starting XI to Serbia's top scorer Aleksandar Mitrovic, sends an effort well wide of goal.

Image source, Reuters

Ireland warming up to this now.

Callum Robinson needs no invitation to shoot and his bobbling effort is saved by Ralph Schon.

Ireland's first real wander forward sees Callum Robinson fire in a low ball that is sliced away from the box by a Luxembourg boot.

All Spain right now, like an attack vs defence drill.

The hosts are looking to reach a 12th consecutive World Cup. Last time they failed to reach the competition was in 1974

Luxembourg want a penalty. They feel John Egan has handled in (or at the very least near) the box following a Gerson Rodrigues poked effort. The referee isn't buying it.

Ireland getting themselves in a bit of bother here. Luxembourg are pressing high and the away defence are making errors.

Gerson Rodrigues has a couple of chances to shoot but fails to get the ball away both times.

Image source, EPA

Spain start with possession. By the way, Sweden captain Victor Lindelof is playing his 50th match for his national team.

I expect he'll be fairly busy tonight.

Ireland in their orange strip tonight. They launch a long ball forward and a poor touch looks for a second like it might sneak through to Adam Idah, but home keeper Ralph Schon claims.

Image source, Getty Images

And we are under way. All the goals and the best action to come from what could be a dramatic few World Cup qualifiers. And the game in Luxembourg.