Sir Bobby Robson's match reaction More Uefa Cup photos

Substitute Shola Ameobi scored twice as Newcastle survived a scare against Valerenga to book their place in the fourth round of the Uefa Cup.

Alan Shearer drilled in a free-kick on 20 minutes after keeper Oyvind Bolthof was harshly adjudged to have handled outside the box.

Erik Hagen volleyed in soon after from a corner to level the aggregate score.

But Bolthof let in Ameobi's shot two minutes after the break and the striker pounced again late on to seal victory.

Bobby Robson's decision to leave Shearer out of the first leg in Norway had provoked an angry reaction from the Newcastle skipper.

And Shearer wasted no time reminding his manager what the side had been missing.

He had already been denied from close range when Newcastle were awarded a free-kick on the edge of the Valerenga box.

KEY MOMENTS 20 mins: Shearer fires Newcastle ahead 25 mins: Hagen equalises for Valerenga 47 mins: Bolthof lets in Ameobi's shot 84 mins: Berre volleys over 89 mins: Ameobi nets his second

Keeper Bolthof was adjudged to have carried the ball out of his area as he cleared, despite TV replays showing otherwise.

But Bolthof should have done better with Shearer's low free-kick, which he allowed to squirm through his arms and into the net.

Stung by the goal, Valerenga subjected the home side to a spell of intense pressure which yielded an equaliser.

Shay Given dived full stretch to keep out a drive from Jorgen Jalland and then tipped a rising shot from Ardian Gashi on to the bar.

But Newcastle were punished for more slack defending when centre-back Hagen found himself unmarked at a Kjetil Rekdal corner and volleyed home.

There was more anxiety for Newcastle when Given miscontrolled a Michael Bridges backpass, but they almost scored again when Titus Bramble headed Laurent Robert's free-kick just wide.

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Newcastle again had Bolthof to thank as Ameobi put them back in front within two minutes of replacing the injured Craig Bellamy at half-time.

Ameobi cut in from the left and sent a shot straight at Bolthof which the keeper contrived to deflect into the net.

Mindful that conceding another away goal could prove fatal, Newcastle tightened up at the back.

Ameobi headed over and Shearer was wide with an acrobatic shot, but Jonathan Woodgate did well to block a Gashi shot.

There was a late scare when Morten Berre ghosted into the box and sent a close-range volley over the bar.

But Ameobi ran on to a Jermaine Jenas pass in the final minute and fired home to end the Norwegians' challenge.

Newcastle: Given, O'Brien, Woodgate, Bramble, Hughes, Bridges, Jenas, Speed, Robert, Shearer, Bellamy. Subs: Harper, Elliott, Ameobi, Viana, Brittain, Orr, Taylor.

Valerenga: Bolthof, Brocken, Hagen, Kjetil Rekdal, Hovi, Hanssen, Jalland, Gashi, Daniel Fredheim Holm, Berre, Dos Santos. Subs: Hjulstad, Bohinen, Ovrebo, Lund, Normann, Waehler.

Referee: Eric Braamhaar (Holland).