The Spanish star is looking to return to winning ways
Rafa Nadal has made some changes to his coaching team ahead of the tennis season kicking off with the Australian Open in January.
Nadal, who is currently ranked ninth in the world, made the announcement on Saturday, stating that he would be joining his coaching ticket alongside Toni Nadal and Francis Roig.
"For me, it's a thrill to have someone like Carlos who, apart from being a friend, is a very important person in my career. Carlos will be from this point on, with me in training and in competition."
Moyá, who recently split from Canadian Milos Raonic, during which period he rose to third in the world, said that he was thrilled to receive the call to join up with the team, and immediately agreed.
"For me, to be able to help Rafa is something really special and I'm sure that, along with Toni, Francis and the rest of the team, I'm joining in a common project. Rafa is a special player but, above all, he's a great person and a great friend. I'm confident that he will get back to winning titles, which is what we're all hoping for."
Moyá will also be involved in the work that goes on at Nadal's academy, something which the player's uncle Toni highlighted was a large part of the reason he was coming on board.
"When I found out that Carlos wasn't going to keep working with Raonic, I called him because I thought he would be a good addition to the team and to all our projects, like the future of the Rafa Nadal Academy.
"Carlos has always been a special person for us and Rafa has always had a lot of respect and appreciation for him since he started as a professional. He was always there to help us, and we just understood that now was the perfect time to bring him on board."