Cristiano Ronaldo's £99 million transfer from Real Madrid to Juventus seemed to come from out of nowhere, despite rumours swirling for a succession of months.

The Portuguese and certainly adapted quicker to his new surroundings than Real Madrid have without their former star man.

Ten goals in 15 matches for Ronaldo in Serie A is not a bad return at all, especially if you put the fact that he is 33-years-old into the consideration.

Real Madrid have been heavily criticised this campaign despite keeping the Ballon d'Or at the club with Luka Modric's maiden victory.

Los Galacticos are currently sitting in fourth position in La Liga, five points off the place of Barcelona.

This, along with a plethora of players such as Modric, Sergio Ramos and most notably Isco not performing anywhere near to the standards they have set previous, has caused food for thought for arguably the biggest club in the world.

From the biggest club back to arguably the biggest player, Ronaldo may have performed thus far domestically but the five-time Ballon d'Or winner has struggled in the tournament where he excelled for nine seasons at Madrid, the Champions League.

The ex-Manchester United player set an unwanted personal record in Champions League group stages this campaign, bagging just one goal in six games.

That is his lowest goal return for Ronaldo since he left the Red Devils back in 2009.

Ironically, Ronaldo's solitary goal in the Champions League so far was against his old club as Juventus defeated United 2-1.

This stat seems to have gone under the radar due to the struggles of Madrid but putting Ronaldo's season into perspective so far, his 11 goals in 20 matches in all competitions is his worst goals to game ratio since the 2008/2009 season.

You could say we are merely clutching at straws but an insurmountable goal return in the Champions League for Ronaldo had been inevitable - until this season. 

But Ronaldo is a big match player and with a staggering 52 goals in the knockout stages in his career, do not be surprised if he bangs them in as the tournament gets to the latter stages.