David Haye is stepping up his recovery from an Achilles injury after having his protective boot removed.
The former WBA world heavyweight champion has been on the sidelines since rupturing his Achilles tendon in his 11th-round stoppage defeat to Tony Bellew in March.
He subsequently underwent surgery to repair the damage and has since been wearing a protective boot around his right foot.
Haye, who is targeting a rematch against Bellew, has returned to the gym and revealed in an Instagram post that he is back walking without assistance.
"I'm out of my boot and walking. It's slow progress, but I am going in the right direction," Haye said.
"No pain. That's going to improve bit by bit every day until I am fully running again."
Haye was forced to fight on one leg after sustaining the injury in the sixth round of his bout against Bellew and faced a barrage of punches from the WBC world cruiserweight champion in the later rounds.
His trainer, Shane McGuigan, threw in the towel at The O2 after Haye fell through the ropes following another bombardment of punches from Bellew.