Athletic Bilbao striker Aritz Aduriz has defended his Real Madrid counterpart Cristiano Ronaldo, saying that questions over the Portuguese star's form are "an insult."
The three-time Ballon d'Or winner has scored 30 goals in 29 games in all competitions this season but doubts over his performances continue to surface.
Ronaldo has failed to find the net in four of his last six La Liga matches, but Aduriz contends that the Real Madrid man's statistics -- along Barcelona's Leo Messi -- still stand up.
"Can Cristiano be questioned? It seems like an insult to me," Aduriz told AS. "We can't question him for anything in the world."
"We're very spoiled [with Messi and Ronaldo]. Their numbers are astronomical."
Aduriz, 34, has been one of La Liga's star performers this season, scoring 13 goals in 22 games, leading to calls for the veteran to be included in Spain's Euro 2016 squad.
"It's not only me who can answer this question," Aduriz responded when asked about his international ambitions.
"The important thing is to do well for the team and what has to happen will happen.
"Of course there are players and strikers who are doing incredible things. The level is very high and that's good for La Liga and everybody."
Aduriz will lead the line for Athletic when they take on Real Madrid at the Bernabeu on Saturday.