Berwin Leighton Paisner (BLP) has been pushed off its lead advisory role for PartyGaming’s £5bn IPO with the client citing the need for a larger law firm.

The upcoming IPO, which was announced on 2 June, will see Freshfields Bruckhaus Deringer take the lucrative lead role on what promises to be the biggest UK IPO since Orange listed for £29bn in 2001.