Marks & Spencer Group Plc (MKS) will this week report non-food sales fell 7 percent last quarter, the worst trading for three years, the Sunday Times reported, without saying how it obtained the information.

The result will place pressure on Marc Bolland, the chief executive officer who’s been at the helm of the U.K. retailer for two years, the newspaper said. The company’s board may blame the drop on bad weather as last month was the wettest June on record, according to the report.

To contact the reporter on this story: Mathew Carr in London at m.carr@bloomberg.net

To contact the editor responsible for this story: Lars Paulsson at lpaulsson@bloomberg.net