World Cup 2010: The best pictures from Group B

Today's big match (discounting England v USA, naturally) is all about two diminutive Argentinian wizards - Diego Armando Maradona and Lionel Andres Messi. Having fisted his way to a World Cup winner's medal in 1986, Maradona is hoping to guide his young proteges, including Messi, to glory of their own. But there's no doubting who these fans believe is the greatest player ever to grace the game. Sorry Messi, it's not you
Photograph: Carl Recine/Action Images

A great start for the boys in blue and white as Gabriel Heinze scores after just six minutes - the former Manchester United player unmarked as he drives a header into the top corner
Photograph: Hassan Ammar/AP

So much for sticking a man on the line. Chidi Odiah is too flat-footed to prevent Heinze's effort hitting the back of the net
Photograph: Christof Koepsel/Getty Images

Look who's pleased ...
Photograph: Mike Hewitt - FIFA/FIFA via Getty Images

Carlos Tevez is caught between Nigeria's Chinedu Obasi and Yakubu as the Argentinians dominate the opening exchanges
Photograph: Hassan Ammar/AP

Messi, affectionately known as 'the flea', leaves one chap on his backside as he zips through Nigeria's defence
Photograph: Streeter Lecka/Getty Images

Vincent Enyeama, Nigeria's goalkeeper, prevents a goal-scoring chance
Photograph: Georgi Licovski/EPA

Maradona seems a bit concerned ...
Photograph: David Cannon/Getty Images

Very concerned. Don't worry Diego - just look at your watches (either of them). There's plenty of time to score a second goal
Photograph: Martin Meissner/AP

Obafemi Martins challenges Walter Samuel
Photograph: Jon Hrusa/EPA

The world's greatest player, completely unmarked ... Curious tactics from the Nigerian coach Lars Lagerback
Photograph: Kim Kyung-hoon/Reuters

The chances keep on coming for Argentina. A delightful exchange on the edge of the box sets Messi free, but again Enyeama blocks the shot
Photograph: David Gray/Reuters

Ultimately the game ends 1-0. Three points - that's all Maradona cares about
Photograph: Streeter Lecka/Getty Images

Over at the Nelson Mandela Bay Stadium in Port Elizabeth, South Korea faced Greece
Photograph: Lee Smith/Action Images

Lee Jung-soo scored the opening goal after just seven minutes after being left unmarked at the back post from a free-kick
Photograph: Laurence Griffiths/Getty Images

Park Ji-sung gave South Korea a 2-0 lead by seizing on a loose ball and racing clear of the defence
Photograph: Yonhap News Agency/EPA

Greece's players looked dejected afterwards. Not quite the start to the tournament they were hoping for – and they're still to score a goal after four games at the World Cup finals
Photograph: Liu Jin/AFP/Getty Images