football analyst once his playing career ends, the network said Tuesday.When that actually happens is unclear, because Brady recently changed his mind about retiring and said he plans to continue playing for the Tampa Bay Buccaneers for his 23rd NFL season.Fox Corp. CEO Lachlan Murdoch made the announcement during a corporate investor call on Tuesday.“Over the course of this long-term agreement, Tom will not only call our our biggest NFL games with Kevin Burkhardt, he will also serve as an ambassador for us, particularly with respect to client and promotional initiatives,” Murdoch said.Murdoch said it's “entirely up to” Brady when he decides to retire from football and join Fox.