Cristiano Ronaldo is having a significant influence behind the scenes at Al-Nassr, the club's nutritionist has revealed.
The 38-year-old superstar arrived in Saudi Arabia last month on a staggering £175m-a-year deal - and his impact is being felt on and off the pitch.
Ronaldo's Al-Nassr are top of the Saudi Pro League, while the Portuguese striker has five goals in as many games.
Spanish nutritionist Jose Blesa, who flies to Saudi Arabia once a month to help Al-Nassr, has given an insight into Ronaldo's impact on the squad.
Speaking to Spanish publication Ideal, Blesa admitted he was unsure at first about what it was going to be like to work with Ronaldo, but he said 'dealing with him is wonderful'.
'I was uncertain, like everyone else, about what it was going to be like to work with him and if the club was going to change a lot, but I haven't found a more professional footballer than him... He is the first to arrive at training and the last to leave,' Blesa said.
'Cristiano helps me a lot, because we can no longer teach him anything, but he creates a school around him.
'The rest of the players do what he does because everything he does is wonderful to improve his performance.
'Since he has been here, all the players have trained more intensely and followed a stricter diet.
'I have not seen a club like this in which the players improve practically 90 per cent in their body composition. Every time I see them, they have less fat, more muscle and they do all the exercises at their fingertips. It is a luxury to work there.'
At 38-years-old, Ronaldo shows no sign of stopping, with the the five-time Ballon d'Or winner still in immaculate shape.
Ronaldo failed to score in his opening two games but netted a stunning four-goal haul against Al-Wehda to break 500 career club goals.
He then followed it up with a sublime assist for his Al-Nassr teammate Abdulrahman Ghareeb in their 2-1 win over Al-Taawoun, as he continues to show his true quality in Saudi Arabia.
Ronaldo is also enjoying life off the pitch. He was pictured donning traditional Middle-Eastern attire to honour Saudi Arabia's Founding Day on Wednesday.
