Joe Montana believes the New England Patriots "made a mistake" after allowing legendary quarterback Tom Brady to leave for the Tampa Bay Buccaneers.
Brady swapped the Patriots for the Buccaneers on a two-year deal in free agency following six Super Bowl titles during an illustrious career in New England.
The 42-year-old was drafted by the Patriots in 2000 and four-time Super Bowl-winning quarterback Montana does not understand why New England granted Brady's exit.
"I don't know what's going on inside there, but somebody made a mistake," the 63-year-old Montana, who spent 14 seasons playing for the San Francisco 49ers before being traded to the Kansas City Chiefs, told USA Today Sports.