Wales v Scotland: Liverpool's Joe Allen says Gareth Bale will not seek revenge on Charlie Adam The two will come face to face on Friday night for the first time since Bale was left nursing an injured ankle courtesy of Adam's hefty challenge during the pre-season game between Liverpool and Tottenham Hotspur in Baltimore. It was the second time in 14 months that Bale had been sidelined by an Adam tackle. In May 2011, when Adam was at Blackpool, the 26-year-old Scot escaped a Football Association charge after rupturing Bale's ankle ligaments, following a stamp at White Hart Lane. Such was the anger on Bale's part following the incident in July, the Cardiff-born player said he would turn down any offer of an olive branch to end their feud. Ten weeks on and the stakes are much higher, with Bale's Wales hosting Scotland in a World Cup qualifying game that neither side can afford to lose. Still, despite the obvious potential for reprisal, Allen, who joined Liverpool a few weeks before Adam departed to Stoke City, believes the pair are too professional to become embroiled in any nonsense. "It won't be any more feisty than any other game in the group," said Allen. Yes, there is an element of rivalry, but as professionals, we approach every game at international level in the same way. Our aim is simply to win the football match. Gareth Bale is a world-class player who performs every time he goes out on to the football pitch. I am sure the Scots will be pretty scared about facing a player of his ability. Wales have yet to win under manager Chris Coleman and are still smarting from a 6-1 beating in Serbia. That defeat in Novi Sad came just four days after Coleman's side had kicked off their qualifying campaign with a 2-0 home defeat at the hands of Belgium. "The biggest disappointment from the Serbia game was that we gave it everything and it didn't seem to happen," said Allen. However, as players we have shouldered the responsibility and there are no excuses any longer. Yes, we have made it more difficult for ourselves because we have lost our first two games. However, there is plenty of talent in the squad and we are a group of hungry and determined professionals who are excited at the possibility of doing something special.