Sell-out crowd watch St Helens play first match at Langtree Park and retain Karalius Cup Flynn, one of only two survivors from the Vikings' Championship team in the starting line-up, enjoyed the distinction of scoring the first try at the sparkling new ground in front of a sell-out crowd of 11,924, down by 6,000 on the capacity for safety reasons. One of the Vikings' new boys, centre Stefan Marsh, did the early damage, sending Flynn over at the corner for the first try and then scoring himself. Second rower Sia Soliola burst through for Saints' first try on 18 minutes and Foster kicked the first of his seven goals to cut the gap to four points. Acting captain James Roby and full-back Makinson then combined to get Francis Meli over on 23 minutes and Foster's second goal put Saints 12-10 in front for the first time. Their lead lasted just three minutes, however, after scrum-half Rhys Hanbury burst through for a solo try to make it 14-12. Replacement full-back Nathan Ashe and Flynn then traded tries as Widnes led 20-18 at half-time but Lee Gaskell sliced through for his side's fourth try in the second half. Flynn touched down Hanbury's kick on 62 minutes to complete his hat-trick but Saints finished with a flourish to earn a flattering margin of victory. Widnes' misery was compounded by the loss of impressive half-back Anthony Watts with a leg injury midway through the second half. Elsewhere, Danny McGuire scored a first-half hat-trick of tries as Leeds beat Featherstone 66-0 in Friday night's Rob Burrow testimonial match at Headingley.