By Phil McNulty BBC Sport Online chief football writer

Sven-Goran Eriksson may have celebrated a fellow Swede's success in the FA Cup Final - but not for long.

England coach Eriksson sat in the Cardiff sunshine running the rule over Arsenal's World Cup contenders David Seaman, Ashley Cole and Sol Campbell.

But he will have retreated from the Principality with a clear image of a massive threat emerging to England's ambitions in Korea and Japan.

And the threat comes in the colourful shape of Arsenal's match-winner in-chief Freddie Ljungberg.

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Ljungberg became the first man in 40 years to score in successive FA Cup finals when he struck the second goal in Arsenal's 2-0 win against Chelsea in Cardiff.

It was spectacular. It was typical. And it was his seventh goal in successive games as Arsenal moved menacingly towards an FA Cup and Premiership double.

Arsenal's Parlour curls the opener past Cudicini

Ljungberg is currently the Premiership's most potent force, and Eriksson's notebook will have simply contained confirmation that he is the major danger when England face Sweden on 2 June.

The darting little midfield man sports a hairstyle that signals red for danger - and despite his conspicuous image, he resembles a shadow in football terms.

Ljungberg's ability to make runs from midfield is no secret, but knowing he does it and stopping him are two entirely different matters.

Ray Parlour's opener was from the top drawer - but that was topped by Ljungberg with a goal that typified his recent form and rubber-stamped Arsenal's win.

Ljungberg picked up Edu's pass in his own half as Chelsea retreated, and he showed speed of thought and movement as he made his way towards goal.

He showed strength in shrugging off the not inconsiderable presence of John Terry.

And he showed vision with swift glance to his right to assess his options before curling an eye-opening right foot curling finish past the helpless Carlo Cudicini.

Sweden are a team fashioned around solidity, but Ljungberg is the man who provides the unpredictable edge that will cast a shadow over England.

Ljungberg will cause England problems

It was a fitting flourish for Arsenal's victory - but a moment out of character with an FA Cup final that saw two of the Premiership elite cancel each other out in the palatial surroundings of Cardiff's Millennium Stadium.

Chelsea paid the price for a gamble on Jimmy Floyd Hasselbaink that was never going to pay dividends for coach Claudio Ranieri.

It is understandable to take a chance on a player who is touch and go - it is folly to throw in a player who was struggling to break into a brisk trot even in the warm-up.

This was a mortal blow to Chelsea's hopes, with Hasselbaink the sort of instinctive marksman who could have produced the moment of individual brilliance that gave Arsenal victory.

It was a low-key final decided by two moments of magic.

And - one in particular that would have delighted Arsenal but sent a shiver down the spine of the watching Eriksson.