Newcomer Paul Cotter proved his value, scoring again in Prague as the New Jersey Devils beat the Buffalo Sabres 3-1 on Saturday for a sweep of their regular-season-opening series in the Czech capital. Cotter, among New Jersey's new additions, also scored in a 4-1 win Friday and added an assist. “He’s got more to offer to our group than he’s shown in the league previously,” coach Sheldon Keefe said.