A high-placed NFL source said Tuesday morning that the agent for retired quarterback Brett Favre(notes) spent much of Monday calling to check on the details of what would be a one-year, $12 million deal for Favre to join the Minnesota Vikings.

Favre’s agent, Bus Cook, did not immediately return phone messages left by Yahoo! Sports. However, The Associated Press reported Tuesday morning that Minnesota coach Brad Childress confirmed in an e-mail that Favre was traveling from Mississippi to meet with the team.

The reported talks by Cook come on the heals of strong speculation by FOX Sports NFL reporter Jay Glazer on Monday that Favre would join the Vikings later this year. WCCO-TV in Minneapolis reported on Tuesday morning that a high-placed Vikings source expected Favre to sign with the team later in the day.

Favre has wavered on whether to stay retired since making his initial announcement to leave the Green Bay Packers in March 2008. Favre had been expected to join the Vikings at the start of training camp, but then told Minnesota coach Brad Childress that he wasn’t interested in playing at that time.