He told Business Insider: "It looks like the behavior of a jilted lover. Christmas came early for Sapient shareholders."
Sorrell is presumably referring to Publicis failed $35 billion merger with Omnicom, which was due to create the world's largest advertising group, overtaking WPP, but which collapsed in May this year.
Sorrell is currently traveling and could not be reached for further clarification, but this story will be updated when he sends an additional response.
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