WPP believed to be challenging former boss Sorrell for acquisition target MediaMonks

Sir Martin Sorrell's former employer, WPP, is understood to be trying to beat him to the race to acquire MediaMonks.
Earlier today the Dutch digital production firm emerged as the first takeover target for Sorrell's new S4 Capital venture, which he joined after leaving his WPP chief executive post in acrimonious fashion in April.
But now it looks as though Sorrell may face competition for the deal, with Sky News reporting that his old employer WPP and consultancy Accenture have also lo