Former Boston Red Sox star David Ortiz remained in the intensive care unit at Massachusetts General Hospital on Wednesday as he continues to recover from surgery to repair gunshot wounds, the result of what authorities say was an orchestrated plot to kill him.

"Yesterday and this morning, David was able to sit up as well as take some steps. His condition is guarded and he will remain in the ICU for the coming days, but he is making good progress towards recovery," his wife, Tiffany Ortiz, said in a statement issued by the Boston Red Sox.

The retired slugger was in a club in Santo Domingo, Dominican Republic, on Sunday night when he was shot by a man at close range in what authorities say was a coordinated attack. Surgeons there operated for six hours to repair damage to his intestines and liver, also removing his gallbladder.