Cristiano Ronaldo is not a happy chappy at Real Madrid, according to former player and sporting director Jorge Valdano.

Ronaldo has not been at his consistent prolific best this season, with a couple of goal bursts keeping him amongst the top scorers, rather than consistently good showings.

One of the reasons for that could be the position he has played quite often this season at Real Madrid under Rafa Benitez, with the Spaniard deploying his superstar as a centre-forward.

While Ronaldo at centre-forward has been talked about quite a bit in the past, the Portuguese has not quite warmed up to that role, even if Benitez cannot be entirely blamed, considering the Real Madrid manager has been forced to play his main man through the middle largely due to injuries.

Karim Benzema, Gareth Bale and James Rodriguez have all missed large chunks of the season already, leaving Ronaldo to take up the mantle on his own.

"Ronaldo would prefer to play coming in from the left, as he has always done," Valdano was quoted as saying by the Daily Mirror. "We have to say that Cristiano could be one of the best centre-forwards in the world, but he is playing under protest.

"I have been told something [from inside the club], but it is not scientific. We don't know if that is because he is not scoring goals, but what you can see is that he is not enjoying the games.

"You can see that from his body language, as if he is playing in a position he does not like, where he is more uncomfortable. From the wing he can surprise the defence more, whereas, up front, with his back to goal, it is different."

Ronaldo was linked with a move to PSG recently, after the Portuguese was seen whispering something in Laurent Blanc's year, while he also gave a friendly pat on the back of the French club's president Nasser Al-Khelaifi.

Real Madrid lost their position at the top of the La Liga table to Barcelona, after suffering a 3-2 defeat to Sevilla. Next up in club football for Ronaldo is the El Clasico.