Derbies and championship-deciders are the order of the day in Round 31 of the FIFA World Leagues Predictor. Here's a look at the biggest games.

Match of the week: Juventus - Inter Milan (Italy)
The much anticipated Serie A showdown between Juventus and Inter Milan has finally arrived. A win for Mourinho's men virtually hands them the championship, while a  victory for La Vecchia Signora keeps the title-chase alive by bringing the league leaders within seven points of second-placed Juventus with six matches to play. A Juventus win returns 59 points, an Inter Milan win 67pts and a draw 74.

The longshot: Albirex Niigata - Sanfrecce Hiroshima (Japan)
After a season in the J2, Sanfrecce Hiroshima have returned to Japan's top flight. This weekend they face Albirex Niigata team who currently sit in third place. Will Albirex prove too seasoned for Sanfrecce Hiroshima? The numbers seem to think so. However, a Sanfrecce Hiroshima upset would return 85 points, if that proves to be too tempting.

The Derbies:
PSV - Ajax (Netherlands)
Reigning Dutch champions PSV Eindhoven face 2007/08 runners-up Ajax in the latest klassieker. Fifth-placed PSV will have to dismantle third-placed Ajax's six game winning streak if they aim to close the nine point gap between them. In their 99 meetings so far, PSV are slightly ahead with 42 wins to Ajax's 37. A draw result is the least likely outcome but would return the highest points (76 points).

Boca Juniors - River Plate (Argentina)
Buenos Aires prepares for 90 minutes of noise, fireworks and dramatic football as el Superclasico hits La Bombonera stadium. It's been almost a year since the last Boca Juniors-River Plate encounter, which Boca Juniors won 1-0. Despite being in fourth-place, some seven places above their rivals, River Plate's poor away form makes them underdogs on the road. A River Plate win returns 80 points while a Boca win would give you 41 points.

Universidad de Chile - Colo Colo (Chile)
Santiago is preparing for the local derby this weekend. Second-place Universidad de Chile enjoy home advantage against the reigning champions. In a strange turn of form, Colo Colo have lost five of their last six matches and are currently fourth from the bottom of the table. With 55 per cent of the fans backing them to win, Universidad de Chile are fancied favourites among FIFA.com's users.

With only seven rounds left, fans are still uncertain of where many domestic championships will land. Make ten predictions each round, watch the action unfold and you could win a signed FIFA World Cup™ winner's jersey for your very own trophy cabinet.