2:15 PM PT -- The NFL Network has fired Sapp. He'd been with the network since 2008.
12:55 PM PT -- New details in the Warren Sapp arrest ...
Cops say two women told police they were at the hotel "as escorts" and went to Sapp's room, where an argument broke out over money.
The women claim the argument turned physical and spilled out into the hallway.
Cops say the women had injuries consistent with a struggle.
Officials say when cops questioned Sapp,"he was questioned and admitted involvement in the act of prostitution, but denied assaulting the females."
Both women involved in the incident received citations from police -- one for prostitution, the other for a violation of the City’s escort permit requirements. Both women were released.
12:49 PM PT -- Sapp has been SUSPENDED INDEFINITELY from the NFL Network without pay pending the outcome of the investigation ... so says NFL Network spokesman Alex Riethmiller.
12:47 PM PT -- Phoenix Police Chief Joseph Yahner says there are TWO female victims ... who both allegedly suffered minor injuries.
Yahner says the women contacted police officers to report the assault.
12:21 PM PT -- The NFL Network has removed Sapp's bio from the official "On-Air Talent" section of the website.
No word if Sapp has been fired from the Network yet ... but as one source puts it, "It's not looking good."
12:06 PM PT -- A rep for the hotel where Warren was arrested tells TMZ Sports, "we were contacted by the Phoenix Police Dept. today in a matter involving a guest."
"We are cooperating with police as they look into the situation since it is an active investigation. We have no further comment."
Warren Sapp was arrested in Phoenix this morning for soliciting a prostitute around 7AM ... TMZ Sports has learned.
Sapp was also arrested for assault. We're told Sapp was taken into custody at a hotel in Downtown Phoenix.
The 42-year-old "Dancing with the Stars" alum was booked just a few minutes ago.
Sapp was in Phoenix covering the Super Bowl for the NFL Network.
It's not Warren's first arrest -- he was busted in 2010 for domestic battery, but those charges were eventually dropped. He was also arrested for an alleged domestic battery in Miami in 2014.
As we previously reported, officials made it clear before the Super Bowl they would be cracking down on prostitution.
Story developing ...