Hogg has been part of the UTV Media owned operation for the past seven years, developing its cross platform campaigns for the station and magazine’s biggest clients.
He is not believed to have a new role to go to, but is said to be "looking forward to finding a new challenge in the near future".
Adam Mills, sales director at TalkSport, was not available to confirm whether Hogg will be replaced.
TalkSport's revenues are expected to surge 45% in the second quarter on the back of its World Cup led advertising.
It follows UTV Media, which also owns the ITV franchise for Northern Ireland, reporting TalkSport’s revenues were up 16% in the first quarter ahead of the tournament in Brazil.
UTV Media has set its hopes on securing the rights will help reinvigorate revenues across its flagship TalkSport station, which were down 15% year on year in the nine months to 30 September.
The UTV Media-owned radio station will broadcast live commentary of every game from the Brazil 2014 tournament, starting with the opening game on 12 June through to the final at the Maracana Stadium on 13 July.
TalkSport's football presenters and pundits include Stan Collymore, Sam Matterface, Richard Keys and Andy Gray.