JJB Sports expects profit for the first-half of 2007 to fall below expectations, after revenues were hit by a slump in replica product sales.

While same-store revenue was down 4.4%, sales excluding replica products were down just 1.3%.

For the 26 weeks to 29 July, JJB expects a net profit before tax of approximately GBP8m, which is GBP3.5m below the company's original expectations.

The most significant impact on the drop in revenue was tough comparatives set by the 2006 World Cup, the company said.

Trading results for the six weeks to 9 September have been broadly similar to those of the comparative period though, it added in a statement to the London Stock Exchange ahead of its first half results later this month.

The company is also discussing the continuation of its Adidas and Nike store-in-store policy.

JJB is seeking to increase the proportion of "own brand products" within its stores and said it is currently in negotiation with a number of brands to acquire UK distribution rights.

"We therefore believe that it is prudent to assume that the outcome for the full 26 week period to 27 January 2008 will be a trading result similar to that achieved in the comparative period," JJB concluded.