Kentucky Derby winner Barbaro was euthanized Monday after complications from his breakdown at the Preakness last May.
"We just reached a point where it was going to be difficult for him to go on without pain,'' co-owner Roy Jackson said. "It was the right decision, it was the right thing to do. We said all along if there was a situation where it would become more difficult for him then it would be time.''
The Kentucky Derby winner suffered a significant setback over the weekend, and surgery was required to insert two steel pins in a bone — one of three shattered eight months ago in the Preakness but now healthy — to eliminate all weight bearing on the ailing right rear foot.
The procedure on Saturday was a risky one, because it transferred more weight to the leg while the foot rests on the ground bearing no weight.