Papiss Cisse says he wants to focus on football after agreeing to wear the Wonga logo on his Newcastle United shirt following discussions with Islamic teachers.
The Senegalese hitman is one of a number of Muslims at Newcastle but was the only player to object to the club's choice of shirt sponsor on religious grounds.
He told the club's website: "I feel great and ready to go."
"I have had some useful discussions with my club, my family and Islamic teachers in the last few weeks," he said.
"After a huge amount of thought and reflection, I have made the decision to follow my team-mates and wear the kit.
"Although I did not go to Portugal on the training camp, I was back here working hard on my fitness and preparing for the start of the new season.
"Since then, it has been great to be training with my team-mates again."