Mark Jones had a tough night against Owain Ashman

Caerphilly ran riot at a near-deserted Virginia Park to stun the reigning champions with a four-try display.

It was only the Cheesemen's second league win over Welsh opposition in two years, but they did it with a typically exciting, attacking performance in the difficult, windy conditions.

Llanelli will plead the absence of a host of stars on a Six Nations weekend, but there were 11 full internationals in their squad.

It was a frenetic opening, home wing Owain Ashman getting the scoreboards rolling with a fifth-minute try.

The score was an embarrassing one for Llanelli's returning Welsh squad member Mark Jones, who was soundly beaten one-on-one by the ex-Cardiff back.

Match details: Caerphilly Tries: O Ashman, S Tuipolutu, G Lewis (2) Cons: L Richards (2) Pens: Richards (3) Llanelli Tries: N Boobyer, M Jones, L Davies Con: B Davies Pen: Davies

The Cheesemen stunned the visitors with another length-of-the-field move, and from the resultant scrum five full-back Sione Tuipolutu nipped over on the blindside.

Some weak tackling at the other end of the pitch allowed makeshift Llanelli fly-half Neil Boobyer to cross in the corner, making it 10-5 after just 15 minutes.

The Scarlets' full-back Barry Davies found himself handed the place-kicking duties. He missed the conversion, but was successful with a penalty in front of the posts to narrow the half-time gap to two points.

It was down to our attitude, we came here thinking we could just turn up and win Llanelli coach Nigel Davies

More worrying for Llanelli was a first-half wrist injury suffered by hooker Marcus Thomas. He was replaced by former Wales Under-21 flanker Aled Gravell; with Robin McBryde a long-term injury, the number-two position is becoming a real problem for the Scarlets.

Caerphilly were on fire in the second half, veteran wing Geraint Lewis latching on to a Neil Boobyer kick for their third try.

Luke Richards, making his first start at fly-half for five months, converted, then landed two further penalties to take the Cheesemen nearly out of sight.

Davies scored a last-minute consolation try

Tuipolutu put in a grubber in the 64th minute, allowing Lewis to sneak in for his second try, converted by Richards.

There was a late rally from the visitors, Jones making amends for his earlier error with a fine solo try, converted by Davies.

Any thoughts of a comeback were ended by Richards' third penalty, but with the last move of the match another Welsh squad member, Leigh Davies, crossed for a consolation try.

The forwards were absolutely outstanding. We can build on this Geraint Lewis

Llanelli coach Nigel Davies said after the game: "It was down to our attitude, we came here thinking we could just turn up and win.

"We felt we'd prepared well enough but didn't get the set-piece right. We're extremely, bitterly disappointed and it's a harsh lesson."

Caerphilly's two-try wing Geraint Lewis added: "We got the tactics right and shut them out of the game.

"The forwards were absolutely outstanding. We can build on this."

Caerphilly: S Tuipolutu; O Ashman, R Boobyer, S Cox, G Lewis; L Richards, A Chilten; L Manning, F Vunipola, D Sweet, D Davies, P Jones, A Williams, S Grainger, M Workman
Reps: F McGouglhan, J Murphy, G Liddon, C Ferris, R Bilton, N Watkins, J El Abd.

Llanelli: B Davies; M Jones, M Cardey, L Davies, G Evans; N Boobyer, R Walters; P John, M Thomas, J Davies, V Cooper (capt), P Clapham, C Wyatt, D Hodges, I Boobyer.
Reps: A Gravell, D Maddocks, L Gross, G Williams, Adrian Williams, T Selley, W Proctor.

Ref: Clayton Thomas (RFU)