SportCup still has the power to shockJoe Bernstein|Evening Standard14 April 2012The only certainty about the FA Cup third round is that there will be a shock somewhere.Incredibly, there isn't a single all-Premiership third-round tie. But William Hill are still offering 66-1 to punters who believe all 20 top-flight clubs will reach round four.The bookies aren't daft. Despite the supposed huge gap between the Premiership and the rest, Crystal Palace, Norwich, Bolton, West Brom and Blackburn all look vulnerable away to Championship opposition.Southampton's Harry Redknapp, who once led Bournemouth to victory over Manchester United, won't relish a visit to Northampton either, and unpredictable Manchester City won't take a trip to Oldham for granted.BBC commentator John Motson began his career by watching Ronnie Radford and Hereford beat Newcastle United in 1972.He said: "I can see potential problems for Bolton at Ipswich, Southampton, and West Brom at Preston. I'm going to Home Park to see Plymouth and Everton but I don't foresee an upset there."William Hill's Graham Sharpe said: "A lot of the top-flight clubs have difficult draws but the majority will make it through."However, FA.com historian David Barber thinks the draw favours the minnows."If you look at the number of Premiership sides from the bottom half of the table drawn away, it makes it unpredictable," he said.Read MoreAmazon announces plan to close its first centre in UKInjured Jones makes tearful exit as Fearnley loses at Australian OpenTransfer news LIVE! Arsenal eye Guehi alternative; Chelsea agree deal SponsoredWhy Oxford Street is so much more than a shopping destination"Any Premiership club who takes their game for granted should talk to Charlton. They will treat Rochdale like Real Madrid thanks to a woeful FA Cup record in recent years."MORE ABOUTBlackburn RoversBolton WanderersCrystal Palace FCHarry RedknappNewcastle UnitedNorthamptonSouthampton FcWest Bromwich Albion