Rickie Lambert says Southampton are no longer scared of the Premier League's "big clubs" as they prepare to face Chelsea on Saturday.
And striker Lambert told BBC Radio Solent: "We've maybe shown the big clubs too much respect in the past.
"I don't think that's the case anymore," claimed the 31-year-old.
Lambert, who signed a new deal at the club last week, added: "We've got more belief that we can beat the big teams.
"That's what we'll be thinking come Saturday after the two big wins we've had in the past few weeks."
Since Mauricio Pochettino's appointment in January Southampton have lost just three games under the former Argentine international's leadership and have pulled four points clear of the relegation zone.
One of those defeats was a narrow 2-1 loss to Manchester United at Old Trafford.
Chelsea have won their last two league matches and have lost just twice in their last ten games in all competitions.