Gregg Giannotti torches 'bad teammate' Brandon Tierney: 'People hated working with that guy'

Brandon Tierney may have left WFAN on good terms last year, but he appears to have built an enemy in morning host Gregg ...

WFAN war erupts as Greg Giannotti torches oustered host over ‘bad teammate’ shot

Greg Giannotti fires back with receipts, witnesses, and a scorching verdict on his former colleague's real reputation.