Chelsea's Petr Cech casts doubt on the ability of big spenders Manchester City to deal with the pressure Arsenal will want to prove everybody wrong. They will be wanting to prove that they are still hungry for success because the manager is under pressure for results. That pressure to deliver is also felt personally by Cech, particularly since the arrival from Fulham of Mark Schwarzer to provide experienced goalkeeping cover. "I am under pressure so I obviously need to be at my best to keep my place - if I don't do that, I am not going to play in the Premier League," he said. He stressed, though, that there is a big difference between pressure and fear. If you have fear you might as well stay on holiday and not come back - it is a waste of time and energy. We need progression after last season for it to be a success. Progression means doing better in the Premier League and doing better in the Champions League. We need to win something. Chelsea will be Manchester United's first visitors to Old Trafford next season on August 26. "I think the confidence comes from the results," Cech said. If you work well and see that you are physically ready and competitive in every game it gives you the confidence that you can win things. We surely want to improve on the last two seasons. When United didn't play particularly well, they always managed to get a result. I think the start of the season will be important.