iGaming Business – UK bookmaker Ladbrokes has confirmed it is to place its multi-million pound advertising account up for review. According to marketing website The Drum, the account has been held by SapientNitro since it was appointed lead creative agency in July 2011. SapientNitro is believed to have been invited to re-pitch for the account, but neither the marketing agency nor Ladbrokes would confirm this. Under the leadership of SapientNitro, Ladbrokes has enjoyed a range of success in its multi-channel advertising efforts. SapientNitro developed the ‘Game On’ campaign, featuring Italian football commentator Tiziano Crudeli and UK football television pundit Chris…