David Ortiz takes batting practice

BOSTON -- Boston Red Sox slugger David Ortiz, on the disabled list since July 16 with a right Achilles strain, took batting practice at Fenway Park on Tuesday, one day after receiving an injection in his heel.

Ortiz hit the ball with power to all fields and said he'll need at least three days of pain-free workouts before he can play. The All-Star designated hitter hopes to be ready for Sunday's game against the Cleveland Indians.

"Normally it would hurt by now," he said, sitting in the dugout after BP. "I think it's going to be OK."

Ortiz took 35 swings, hitting only a couple of balls into either the right-field seats or bullpens at the beginning. He then sent a half dozen deep to right in his final eight swings.

"I have to go at it to see how it feels," he said. "What has bothered me the most was not the injury, it was the running part."

"He says he feels as good now as he did before he got hurt," Red Sox manager Bobby Valentine added. "He's taking it slow today and will have full activity tomorrow."

Ortiz received an injection of Marcaine on Monday to help numb the area and reduce the swelling in his heel. He is scheduled for a full workout of all baseball activities on Wednesday.

Valentine said it would be Ortiz's decision if he feels he would need a minor-league rehab stint before returning to the Red Sox.

The 36-year-old Ortiz hit .316 with 23 homers and 58 RBIs in 89 games before going on the 15-day disabled list July 18. He was hurt while rounding second base. Ortiz said that when he's taken BP the injury didn't hurt until a short time after he stopped.

"When we hit we do a lot of twisting and that's when it started to bother me -- when I got done," he said.

But he was happy with how felt.

"Hopefully, another three, four days off," he said. "Hopefully, I feel like I do now."

ESPNBoston.com's Joe McDonald and The Associated Press contributed to this report.