Ralph Hasenhüttl says it is time to end Southampton's poor home run against Chelsea and prove to Sunday's opposition that his side are more than capable of competing against them.
Saints host Frank Lampard's side in a 2pm kick-off, as they look to beat them at St Mary's for the first time in seven attempts.
The previous six Premier League meetings on the south coast have seen the Blues walk away as victors on five occasions, with a draw in a December 2014 meeting the only thing that Southampton have had to show in that run.
ralph hasenhüttlwe must know that if we want to take something then we have to play 96 minutes in the absolute highest performance.
Hasenhüttl has full faith, though, that they can come away with a positive result this weekend and put last weekend's disappointment at Tottenham behind them.
"We had a big chance to take something there, but, in the end, we didn't score," he said. "In the second half we had a lot of chances to do so, but then we must be more clinical in the next game.
"It's a very, very strong opponent that we are facing at the weekend. I know about our record against Chelsea at home – it is not the best one, so it is time to show that we can compete with such a team and that means we should really be clinical in the final third.
"Against the ball, you cannot defend every moment, so they will have a few chances, but we must do everything we can to have a clean sheet and try to win this game.
Hasenhüttl added: "They have a very good, young, hungry team. They are very successful, they have high quality in every position and no weakness at all.
"We must know that if we want to take something then we have to play 96 minutes in the absolute highest performance and when we do this, and we can do this, and when you have a mentality to stand with them, then we have a chance."