It's not only the goals that have become a worry - Ronaldo just doesn't seem to be offering much when he's not scoring either. A player who thrived at dribbling at the opponent and cutting through defense after defense, Ronaldo's dribbling has also seemed to deteriorate while he's not creating much chances either for his teammates.
As much as it's always claimed that anybody can beat anybody in the Premier League, that's never true over the course of a full season. It's part of what makes league competitions so much better in many ways than cups - it's entertainingly open from week to week, while still ensuring that the winning team at the end of the season is almost always the best one.
Four goals for Brazil at the 2014 World Cup convinced the world that Neymar can carry the goalscoring burden for his country and it's evident that his absence in the eventual 7-1 defeat to Germany affected his teammates. The pressure that comes with shouldering such a responsibility is enough to see any player crumble, but Neymar did so effortlessly...
Losing your best player will always have an adverse effect on a team. Liverpool have struggled this season following the sale of Luis Suarez to Barcelona, while Tottenham failed to sufficiently replace Gareth Bale after his record breaking move to Real Madrid. Athletic Club are following suit having floundered through the first 6 weeks of the campaign on the back of Ander Herrera's big money move to Manchester United.
Barcelona may not be able to sign anyone until January 2016, but the youngsters have come into the side and shown why La Masia is so highly thought of. Enrique would have helped a number of the players' development having managed Barcelona B between June 2008 and June 2011 and the team are now reaping the benefits.
Every player in the Premier League is under pressure to be at their best all the time, but each club always has those one or two players whom the fans expect that little bit extra from... this season's Premier League has a few players who will need to be firing on all cylinders from the off to win over the fans and help their team succeed.
The signings of Mandzukic and Griezmann in particular are a real statement of intent by the club, while Simeone has acted accordingly in bringing in defensive reinforcements. With Madrid and Barcelona attempting to outspend one another however, as is customary each summer, Atlético will find it a lot harder to defend their La Liga crown, regardless of the signings made.
Kroos had the best pass success (91.9%) in the Bundesliga last season, and has experience playing for a team who dominates in their domestic league... Rodríguez is expected to be the headine-hogging signing for Madrid this summer. His form in Ligue 1 and at the World Cup saw elite teams take an interest in the attacker...
The Premier League title race is incredibly different to those we've seen before and the absence of Manchester United is the biggest factor behind this. Liverpool are also having a very different season to last and are real contenders for the title, although they face stiff competition from Manchester City and Chelsea.
Vela never lived up to the hype during his time in north London and was loaned to Real Sociedad in 2011 before signing permanently 12 months later. In Spain though, the 24-year old has exhibited the qualities that saw him garner such a reputation at his tender age and his form has helped push the Txuri-urdin towards the Champions League places.