Tough week for Tim Tebow.

Tim Tebow is mourning the loss of his beloved dog, Bronco, after putting the pet down on Wednesday night.

The former NFL athlete shared a heart-wrenching video to Instagram before saying goodbye to his furry friend, breaking down in tears as he fed Bronco a snack one final time.

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Tebow also included a series of photos documenting he and Bronco’s time together since the athlete took him home as a puppy in 2010.

Flip the Page to See the Heartwarming Video: