Lazio v Napoli LIVE - Nothing to split two sides in crucial clash for Serie A top-four race

He's been the livewire of the first half and makes a very positive move here, driving inside from the right and firing a shot at goal that isn't far over.

Lazio threaten on the break as Alberto plays a clever pass down the line for Castellanos to chase. The striker goes down from an apparent trip by Lobotka, but the referee says play on to the fury of the home crowd!

Napoli win a corner and a chance to ask some questions from a dead ball situation. This time Raspadori takes it, but Romagnoli is there to head clear.

Isaksen is proving a real pest for the Napoli defence and wins a free-kick out on the right wing after Rui brings him crashing down. Can they make something of this set piece?

No. It's swung in towards Romagnoli, but Napoli manage to clear their lines.

Replays show there was a bit of a push in the back from Ostigard, but certainly not enough for a spot kick.

Isaksen gets on the ball again, killing a long pass with a deft first touch. He swings a decent cross in and Castellanos leaps to meet it but goes down.

There is a roar of a penalty appeal from the crowd, but it didn't look like much and the referee isn't interested.

Corner comes in, corner headed out, possesssion recycled. We've been here before...

Isaksen has made a couple of interesting runs inside from his position on the right wing to try and stretch this Napoli defence a bit, and looks the likeliest to make something happen for Lazio.

He gets on the ball and has a run. With four defenders crowding round him, the Dane wins a corner.

Zielinski - who has a bit of a point to prove tonight after a spell of rampant speculation about his future - lines one up from the edge of the box, but it's well blocked.

Politano clips an interesting ball into the box towards Rui, but Provedel anticipates it and rushes out to grab the ball. Are Napoli starting to wake up a bit?

At the other end, Napoli deal with an inviting Lazzari cross.

Marusic looks to have made a bit of an error as he fails to shepherd the ball out and Raspadori keeps it alive, but the Lazio full-back recovers well to block a cross from coming in.

The first quarter is up and there has been little action to report. Lazio have looked slightly livelier in attack, but this is more of a tactical chess match than a 100mph thriller...

Earlier today, Genoa stretched an impressive unbeaten run in Serie A to seven games as goals from Mateo Retegui and Caleb Ekuban in the final 20 minutes secured a 2-1 win over Lecce. Read all about it here:

Alberto and Castellanos try to link up with a quick one-two at the edge of the box, but the return pass is cut out. A bit too intricate to get through the black-shirted wall of Napoli defenders.

Napoli win a corner and their first eye at an opportunity. Rui delivers an outswinger, but it hits the first man and Lazio clear easily.

That's the first real chance of the game, Isaksen curling a shot off target from the edge of the box after Alberto darted inside to tee him up. Lazio have started the stronger here.

Alberto puts it in the mixer and Jesus heads clear, but straight into the path of Romagnoli, who batters the first shot of the night miles over the bar.

Lazio would have preferred that fell to someone who isn't a towering centre-back, I imagine...

Castellanos is tripped by Di Lorenzo and Lazio have a free-kick midway into the Napoli half...

Isaksen spins away from Jesus to dart into the box, but the defender recovers and manages to clear it off the winger for a goal kick.

At the other end, Romagnoli easily deals with a Di Lorenzo cross.

Not much to report from the opening exchanges as possession goes back and forth.

Napoli are set up with a back five off the ball, which will pose a challenge for the Lazio attack to break through.

The stadium falls silent in memory of Italy's all-time top scorer Gigi Riva, who sadly died aged 79 earlier this week.

Napoli get the ball rolling, and we're underway in Rome.