Theo Walcott came off the bench in Gothenburg to help send England into the semi-finals of the European Under-21 Championship by defeating Spain.

Under-21 boss Stuart Pearce controversially dropped the Arsenal winger at Gamla Ullevi but England were ahead five minutes after he came on, with Fraizer Campbell netting.

Walcott then set up the second goal for James Milner, who had a penalty saved in the first half.

It was just the response Pearce wanted from Walcott, and Franco Baldini, who was scheduled to attend, will probably send a glowing report back to England boss Fabio Capello.

Pearce will be praised as well because his youngsters are now in the semi-finals, with a Group B match against Germany to spare.

Gunners boss Arsene Wenger, who was strongly opposed to his youngster travelling to Sweden after representing the seniors against Kazakhstan and Andorra, cannot complain either as Walcott has only played 75 minutes in the tournament so far.

Pearce battled to keep Walcott in his squad, dismissing fears of burn-out ahead of next year's World Cup, but then responded by removing the highest-profile player of the tournament after a quiet 45 minutes against Finland.

"Reputations and being well-known count for nothing," Pearce said on the eve of the finals, and he kept his word by replacing Walcott with Middlesbrough winger Adam Johnson against Spain.

Pearce's attitude is that players may have to "fall on their sword" for the good of the team, so Walcott started on the bench and Mark Noble retained the captaincy despite the return of Nedum Onuoha from a thigh complaint to replace suspended Michael Mancienne.

As he admits himself, Pearce is still learning as a manager and his decision not to train at the ground almost cost his youngsters an early goal.

Onuoha overhit a backpass, misjudging the pace of the turf, with Joe Hart racing back and clearing on the line. Even then, it required England to hack away as the Spaniards closed in.

Hart also sent a clearance along the floor straight to Javi Martinez, a possible Manchester City target, but the Spain midfielder could not direct his finish.

Milner's crosses appeared England's most likely route to goal.

The Aston Villa midfielder put one on Gabriel Agbonlahor's head which got deflected over, then from the corner Onuoha and Martin Cranie had close-range efforts blocked.

Milner earned and took England's penalty just after the half-hour mark. Spain lost possession in their own half and Johnson fed through Milner, who twisted his way past Javi Garcia before getting brought down.

It was a well-struck penalty but Sergio Asenjo was down sharply to his right to palm away.

Worse was to follow for England as Agbonlahor had to be taken off six minutes before the break but it was Campbell, not Walcott, who came on.

Hart had a rush of blood to the head 10 minutes after the restart, racing out to meet Martinez even though there was little danger. The Spain midfielder rolled the ball towards goal and Cranie was needed to clear off the goalline.

There were jeers when Barcelona's Bojan Krkic was taken off for Diego Capel just before the hour mark, with two of the biggest stars of the tournament on the bench at that stage. That lasted until the 62nd minute, when Walcott was introduced for Johnson.

Five minutes later, England were ahead. Milner won the ball in Spain territory and poked the ball through for Campbell, who cut inside Garcia before planting his finish in the bottom corner.

Smoke then came out of the stand at the end Campbell scored in, but the situation appeared to be in control.

Pearce danced down the touchline when Walcott set up the second goal, racing behind the Spain defence by outpacing Garcia, then cutting the ball back for Milner to smash home.

The only sour point was Milner's booking, which rules him out of the Germany game.