After 19 incredible seasons with the San Antonio Spurs, the Big Fundamental is hanging them up for good.

This morning, it was announced that the legendary Tim Duncan has retired from the NBA.

The five-time champion has ascended past the age of 40, and while he still can contribute on the court, he's far from the player he was when he twice earned MVP honors and led the Spurs as they became a dynasty.

As the news begins to set in, players, teams, members of the media, and fans everywhere are reacting to Duncan's retirement on Twitter, attempting to honor the future first ballot Hall of Famer as best as they can in 140 characters or less:

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