Brett Favre plans to meet with Vikings coach Brad Childress later this week and discuss the possibility of coming out of retirement -- again.

He turns 40 in October. The biceps tendon in his throwing arm has a partial tear. The NFL's iron man is finally seeing that his body is starting to grow old, especially in the later parts of seasons.

Still, the thought of Favre returning to the NFL is -- once again -- the most compelling story in the NFL. Here are five things that make this possible deal with Minnesota intriguing.

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