“Relations with my nephew are still excellent. During all these years, we have never been through a crisis,” he said.
Nadal’s spokesman Benito Perez told AFP the decision was unexpected.
“These words took us somewhat by surprise. If he said that, then it means just that. I will speak to Rafa about it in the coming days. I don’t think we will be immediately communicating on this subject,” he said.
Coach Nadal said there was no rift with the former world number one and multiple Grand Slam champion.
“Until he was 17 years old, it was me who decided everything. Then Carlos Costa arrived as manager. Then his father became closer, each having his opinions.
“And the truth is that every year I had less decision-making, until the day when I will decide on nothing.”
Spain’s Carlos Moya joined the Nadal coaching team at the end of last year.