Real Madrid coach Zinedine Zidane says it's crucial Cristiano Ronaldo stays for the remainder of his career.

Ronaldo proved the matchwinner in the Club World Cup final against Gremio.

"It is fundamental for us that Ronaldo stays until the very end," Zidane told his post-match press conference. "This is his home.

"I hope he stays here until the end, until the day he retires. We all know what he can do out on the pitch."

Zidane himself now has an incredible haul of trophies in a short spell at Estadio Santiago Bernabeu, with the Frenchman pleased to overtake Spanish icon Vicente del Bosque's record.

"I think most about LaLiga because that is the most demanding," he contemplated.

"This is a very good moment for Real Madrid. I don't know if it's golden, but we're doing very well. We're doing something very important.

"I think my tally is very good. I didn't expect to be up with del Bosque. You have to congratulate the players because what they are doing isn't easy."