"The one good thing about Friday is that you don't necessarily need to get the players up for this game," Hartson said.
"It will be like an old fashioned British-type derby, where the players will know each other pretty well having played against each other several times and
some playing in the same clubs.
"We expect it to be pretty fast and furious like a typical British-type game.
"We know what we have to do. We know the importance of three points but are also not underestimating the Scottish side. They are a very strong side with a good blend.
"We know we have to improve on Serbia where it wasn't good enough.
"We need to improve on our last performance to get anywhere near Scotland, who've come off two home draws.
"They would have probably expected to win at least one of those games.
"I think Scotland may well feel they may perform better away from home. It's a big game and the result is massive.
"We know how important it is to get a win against our arch-rivals."
Jason Brown (Aberdeen), Lewis Price (Crystal Palace), Owain Fôn Williams (Tranmere Rovers), Darcy Blake (Crystal Palace), Ben Davies (Swansea City), Jazz Richards (Swansea City), Chris Gunter (Reading), Lewn Nyatanga (Bristol City), James Wilson (Bristol City), Adam Matthews (Celtic), Sam Ricketts (Bolton Wanderers), Ashley Williams (Swansea City, capt), Joe Allen (Liverpool), Andy King (Leicester City), Joe Ledley (Celtic), Aaron Ramsey (Arsenal), David Vaughan (Sunderland), Gareth Bale (Tottenham Hotspur), Simon Church (Reading), Steve Morison, (Norwich City), Hal Robson-Kanu (Reading), Sam Vokes (Burnley).
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