Arnold Palmer at a March 21 press conference. (David Cannon / Getty Images)

Palmer, 82, had to leave the Bay Hill golf course before the completion of the Arnold Palmer Invitational and was hospitalized overnight in Orlando as a precaution.

“Nobody is overly concerned about his prognosis,” Palmer’s business manager, Alastair Johnston, said (via the Orlando Sentinel) after talking to Palmer’s daughter Amy Saunders.

Johnson said that a change in Palmer’s medication had caused problems and he had been monitored throughout the week. On Sunday afternoon, he was checked again and the decision was made to hospitalize him.

“It wasn’t anything to do with any ailments or any discomfort he felt,” Johnston said. “The blood pressure was at a level where the doctor involved suggested that he go immediately to get more intensive evaluation at the hospital.”

Heading home now and I can’t stop smiling. Thanks to Otown fans and everyone watching for all the love. Get well soon, Arnie.

— Tiger Woods (@TigerWoods) March 26, 2012