"I'll be too old to face a difficult championship as the one in America will surely be"

In this quote, Diego Maradona is revealing his concern about his age and physical abilities in relation to a difficult championship in America. He acknowledges that as he ages, it might become more difficult for him to compete at the exact same level as he once did. This could be due to a decline in his physical strength and stamina, as well as the capacity for younger and more proficient competitors to emerge. Maradona's words also suggest that he knows the high level of competition in America and the challenges he might face in trying to win a championship there. Overall, this quote reflects Maradona's humility and practical viewpoint on his own abilities and limitations.