MANKATO, Minn. -- Brett Favre's spectacular stint with the Minnesota Vikings appears to be over.
Favre has informed the Vikings he will not return to Minnesota for a second season, according to multiple reports.
Favre has sent text messages to teammates saying, "This is it," league sources told ESPN NFL Insider Adam Schefter.
Neither Favre nor the Vikings has confirmed the news, but a statement is expected later Tuesday, the sources said.
Vikings coach Brad Childress said Tuesday that he has talked to Favre in the past 24 hours, but was unaware of the reports of Favre's apparent decision to retire.
"I'm not a big hearsay person," Childress said. "I've got to hear it from the horse's mouth."
Childress told the NFL Network that the Vikings would be prepared if Favre didn't return.
"The same plays are being installed whether [Favre] was here or the guys that are here are here," Childress said.
The Associated Press, citing an unnamed source, reported that the 40-year-old Favre called Childress to say his injured ankle is not responding as well to surgery and rehabilitation as he had hoped.