Horse named after Rob Gronkowski will not run in Kentucky Derby

The horse named after New England Patriots tight end Rob Gronkowski will not run in the Kentucky Derby.

Phoenix Thoroughbreds ownership group announced Monday that Gronkowski the horse developed a fever over the weekend and is unable to make the journey to Churchill Downs.

Gronkowski, who is part-owner of the horse, tweeted about his namesake.

Earlier Monday, the ownership group tweeted that the horse was treated with antibiotics and "is doing well."

The horse had been scheduled to fly to Kentucky this upcoming weekend.

Tom Ludt, head of operations for Phoenix Thoroughbreds, told ESPN that the shelving of the horse for the Derby has no effect on Gronkowski's investment, saying the family "bought in for the long term."

"They are still excited and hopefully we still make the Belmont," Ludt said.

The equine Gronkowski qualified for the 1¼-mile Kentucky Derby with a victory at the Burradon Stakes in Newcastle, England. He has never raced more than a mile, nor has he raced on dirt.

ESPN's Darren Rovell contributed to this report.