A derby that matters

For all the attention that falls on the northern giants, the first weekend of the new year brings a match that could quietly shape the top of Serie A. Napoli and Lazio, fourth and fifth in the table, separated by a single point, meet in a derby that has often been a barometer of ambition. Napoli are unbeaten in ten league games and sit just two points off second place; Lazio, with a game in hand, could leapfrog their hosts with a win. The maths is simple, the football rarely is.

Napoli arrive with tired legs but a settled shape. They have used a 4-4-2 in each of their last twelve matches and are expected to keep it here, though several key men are feeling the strain of a busy December. Basile Pirson, Stéphane Assélé, Rubén Montes, Alejandro Puig and Selçuk Yildiz were all carrying fatigue at the start of this week, and the loss of goalkeeper Dieudonné Defevere to a broken hand is a blow. Loris Setti, a centre-back by trade, will again deputise between the posts, and his recent form has been outstanding—a 7.44 average over his last five games.

Lazio's own fitness report is equally concerning. Demba Coly, Maicol Julve, Amine El Amrani, Juan José Girón and Christian are all short of full sharpness, and the absence of Nicola Grimaldi at centre-back robs them of a leader at the back. They have nonetheless been resilient away from home, using their 4-2-3-1 to take 2.29 points per game against 4-4-2 opponents this season.

The key duels will be out wide. Rubén Montes, Napoli's left midfielder, has been their spark—four goals and two assists in his last five games, and an average rating of 7.23. He will run at Emerson Salazar, a full-back whose season has been solid but unspectacular. On the other flank, Selçuk Yildiz faces the tired legs of Demba Coly. For Lazio, the threat comes from Juan José Girón, whose pace could trouble Donaldo Meschini, and from the aerial battle between the towering Mattia Pirrone and Napoli's Basile Pirson.

There is history here, too. The last meeting, in February, ended 2-2 in Rome. The one before that, Napoli won 5-2. And in the fixture before that, Napoli won again. The home side have won three of the last four Derbies del Sole, and the crowd in Naples will expect that to continue.

One man who will watch with mixed feelings is Jesús Ormaetxea. The Lazio player spent eight seasons at Napoli, winning two trophies, but made only 22 league appearances. He knows both dressing rooms and both sets of expectations. "These games are never just about the table," he told reporters this week. "They are about pride, about the city, about proving you belong at the top."

For both sides, that is precisely what is at stake. Napoli have been better than their expected points, Lazio slightly better than theirs. The margins are fine, and in a derby, fine margins decide everything. The first Derby del Sole of 2064 will not settle the season, but it will tell us a great deal about which of these two sides has the nerve for the months ahead.