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SAN FRANCISCO (KCBS) – Trades are a rarity in the National Football League.  So when one of the league’s star players changes teams, it can make people scratch their head.

That’s exactly how John Madden felt, as he told the KCBS Morning Crew.  “There has to be some underlying things I really don’t know about because when you just look at LeSean McCoy, the year before they were talking about him as the MVP.”

Although the trade is not yet official, an agreement has been reached that would send McCoy to the Buffalo Bills for linebacker Kiko Alonso.