Bobby Zamora insists Queens Park Rangers will refuse to let their shock exit from the FA Cup damage their bid to stay in the Premier League.

Rangers’ miserable recent record in the competition extended into another year after they were dumped out at the third-round stage by League One club Sheffield United, who are making a habit of toppling top flight sides in knockout contests.

There was a sense of embarrassment at Loftus Road following a dreadful display yet Rangers’ priority remains survival – and they face a potentially decisive match at fellow strugglers Burnley on Saturday.

Rangers have yet to pick up a point on their travels this season but Zamora, who was a second-half substitute against United, has confidence they will break that duck at Turf Moor.

“There is no reason why the result against Sheffield United should affect our league form,” said the forward. “We have a big game next week and we will be focused on that from today (MON).

“They are in the same position as us and what needs to be done is self-explanatory. We will go there looking to win the game.”

After a tough festive schedule, and perhaps with one eye on the Burnley game, Rangers boss Harry Redknapp made seven changes for the FA Cup third-round tie but none of those who were recalled, including Rio Ferdinand, did anything to suggest they should be in the team at Burnley.

Ferdinand was given a tough afternoon by Marc McNulty, who scored United’s opening goal, while at left-back Armand Traore could not handle the pace and trickery of Jamal Campbell-Ryce. Campbell-Ryce, 31, scored twice in the second half to crown an impressive display.

“It was not a good display and we were very disappointed,” acknowledged Zamora. “We had a very good side out but Sheffield United did a great job on us. They out-battled and out-worked us.”

As well as dealing a blow to Rangers, Sheffield United’s performance will have given the watching Tottenham scouts plenty to think about.

Spurs face Nigel Clough’s team in the Capital One Cup semi-finals, with the first leg at White Hart Lane on January 21 and the return at Bramall Lane a week later. United’s win over QPR was their fifth top-flight scalp in cup competitions in the last 12 months, and Campbell-Ryce insists they will be full of confidence against Mauricio Pochettino’s team.

“Spurs will probably play a lot more football than QPR,” said Campbell-Ryce, the Londoner who was on the books of Charlton as a youngster but who has spent his career outside the capital.

“They don’t have the duo of Charlie Austin and Bobby Zamora to allow them to play direct football, so we expect them to be more technical and it will be a completely different game. For us it will be about staying compact and trying to hit them on the break.”

Redknapp added: “Our next game at home is against Manchester United on January 17 and we have to be ready, but our home form has been excellent all season. The match at Burnley is massive.”