ll professionally in 1997 and has grown almost unrecognizably fat in recent years while spending much of his time in Cuba fighting cocaine addition. "I want to thank the mayor for giving me the keys to the city," he said during a ceremony. "Even though I do not have the keys to my own house, I have a key to the people, like those of Cartagena, and it fills me with pride." Maradona, 44, is on a liquid diet to be followed by solid foods, his doctors said when he checked out of the Cartagena clinic a week ago. The soccer legend, who is 1.67 metres tall, weighed 121 kgs when he checked in. Doctors said he should be down to 75 kgs in 10 months. Stomach stapling, also known as a gastric bypass surgery, reduces the stomach's capacity for holding food and forces people to eat less. Maradona, whose spectacular playing propelled Argentina to World Cup victory in 1986, spent more than a week in intensive care in a Buenos Aires hospital last April with heart and breathing problems Reuters