WARREN Gatland may be targeting full-back Iain Balshaw and wing Paul Sackey for special treatment at Twickenham tomorrow.

But, if Wales are going to beat England in London for the first time in two decades, then they have to quell the massive threat - and that is no exaggeration - of a man known as Big Ted'.

British Lions tight-head prop Andrew Sheridan, at 19 stones and 6ft 4in tall, is no softy - in fact, he is England's chief threat to Wales up front and lists a favourite hobby' as bricklaying.

Former Ebbw Vale skipper Kingsley Jones has just one word to describe 28-year-old Sheridan's physical shape at present, and that is incredible'.

Ospreys Adam Jones will know all about that late tomorrow following a potentially brutal afternoon toiling against Sheridan.

Gatland has highlighted the threat of the man-mountain, saying: "Sheridan is one we're going to really have to watch. His ball carrying and scrummaging is some of the best in the world."

And Jones, head coach of Sheridan's Guinness Premiership side Sale Sharks, saw at first hand just what awaits Osprey Adam Jones as Wales search for their first Twickenham victory in 20 years.

It is a frightening example of the wrecking machine's power.

Jones, no makeweight himself as a hard-nosed former flanker who enjoys his strength work, said: "I was in the gym with him the other day where he was lifting 85 kilo (13-and-a-half stones) dumb-bells doing chainsaws'.

"These are exercises where you pull the dumb-bells off the floor to your chest. He was throwing them around and pumping them easily so when he stopped, I tried picking one up. I managed to get it off the ground but didn't have the arm strength to lift it any further. That's how powerful he is.

"Sheri came back off injury last week and was outstanding last Friday in our win over Harlequins. He hadn't played much going into that game and needed the run-out before facing Wales.

"Adam Jones has played against him a few times so he will know what to expect. If Adam can get on top of him in the scrum, he can keep the threat at bay but if Andrew gets his incredible barrel chest jutting out and gets underneath you, anyone in the world would be in trouble."

And it is not just in the tight that Wales have to worry about Big Ted'.

Jones added: "He's good around the fringes and it takes three or four men to take him down, he is that strong."

Nevertheless, Jones believes Wales are ready to rid themselves of that barren record of wins at Twickenham tomorrow.

He said: "I think this is the best chance Wales have had to win at Twickenham for a long time. Gatland has made a shrewd decision by picking all 13 Ospreys because they all know each other's game and work well together.

"There is continuity in the centres as well by pairing the two Ospreys (Gavin Henson and Sonny Parker) together, although I would have gone for (Tom) Shanklin myself."

Jones is having a break from running Sale Sharks alongside former French winger Philippe Saint-Andre before taking them to Adams Park, High Wycombe, on Sunday week for a Premiership clash with London Wasps, ironically one of Gatland's old clubs.

And Jones thinks he could be smiling come around six o'clock tomorrow afternoon: "I think Wales can win."