ALEX Tait has warned his Newcastle Falcons team-mates to beware a Harlequins backlash when they attempt to secure an LV Cup final place tomorrow.

Having claimed an emphatic 33-18 win over Quins at Kingston Park last Friday, Falcons will be looking to complete a quick-fire double when they travel to the Stoop.

A second success will book them a place in the LV Cup final at Northampton a week on Sunday, against either Gloucester or Newport Gwent Dragons, who meet in the other semi-final this weekend.

The Anglo-Welsh Cup has been much maligned in recent years, with a number of clubs opting to field shadow squads in the competition, but the winners will receive automatic entry into next season's Heineken Cup.

Newcastle have gone seven years without winning any silverware, but after last weekend's victory in the Premiership, Wolsingham-born Tait is expecting a much stiffer test tomorrow.

"The boys are feeling absolutely awesome at the moment, but we know it will be a different prospect down there," said the 22-year-old, who will revert to his preferred position of full-back after starting last weekend's game on the left wing.

"Harlequins will have the home advantage, they will be seething from Friday's league result and we will have to be ready to face that if we don't want to be shown up."

Newcastle have already lost at the Stoop in the group stages of this year's LV Cup, going down by eight points last November, and will have to do without the services of experienced New Zealander Jeremy Manning, who faces six weeks of the sidelines with a hip injury.

Harlequins have made a number of changes from last weekend's starting line-up, but Falcons centre Luke Eves believes Falcons are more than capable of repeating last weekend's victory amid the intensity of a cup semi-final.

"We got our tactics pretty much spot on last Friday," said Eves. "But we will be throwing a few new things in this time round.

"Quins will know a bit more of what we are about, and will have analysed the video of Friday's game, so we just have to freshen it up and keep them guessing to a certain extent.

"That's always the case when you play teams back-to-back, and there will be one or two new bits chucked in there just to mix it up."

Falcons head coach Alan Tait has been forced to shuffle his back division, with Danny Williams and Gcobani Bobo both returning on the wing.

Bobo replaces Alex Tait, who switches to full-back, while Williams comes in for the injured Luke Fielden, who scored Newcastle's second try last Friday.

New Zealander Brent Wilson retains his place at flanker after impressing last weekend, and Newcastle will hope to repeat their dominance at the line-out, with locks James Hudson and Andrew van der Heijden likely to be crucial.

NEWCASTLE FALCONS (vs Harlequins): Tait, Williams, Eves, Fitzpatrick, Bobo, Gopperth, Young; Golding, Thompson, Murray, Hudson, van der Heijden, Swinson, B Wilson, Hogg.

Replacements: Vickers, Shiells, Brookes, Levi, M Wilson, Charlton, Tu'ipulotu, Catterick.