Real Madrid have endured a poor start to the season in La Liga. Here, Guillem Balague takes a look at the reasons why.

Real Madrid are the talk of La Liga after their dismal start to the campaign. Zinedine Zidane's side looked in perfect shape when they thrashed Barcelona in the Spanish Super Cup in August, but they now sit seven points behind their rivals after just six league games.

Their 2-1 win at Alaves at the weekend provided some much-needed relief, but it's fair to say nobody expected them to be in this position when the season got underway. So what exactly is behind their slow start?

What's interesting is that Real Madrid are still creating plenty of scoring chances. According to Opta, they have created 24 clear-cut opportunities so far - more than any other side in La Liga, including Barcelona.

Real Madrid have created the most big chances in La Liga this season

It's no good creating chances, however, if you can't finish them off!

The stats show they have missed 23 clear-cut opportunities so far this season - 10 more than any of their rivals and more than twice as many as Barcelona.

They struggled badly during Cristiano Ronaldo's suspension. Karim Benzema was guilty of missing six big chances in the 2-2 draw with Valencia. Gareth Bale then wasted three in the 1-1 draw with Levante.

Real Madrid have missed 10 more big chances than any other side in La Liga

Ronaldo's return to the team was supposed to signal the end of that wastefulness, but Madrid drew a blank against Real Betis and the Portuguese superstar failed to find the net against Alaves, too.

The defeat to Betis ended their incredible run of 73 games without failing to score, and this is now the first season since 1995/96 in which Madrid have failed to win any of their first three home games.

Their struggles at the Bernabeu are alarming when you compare their record to last season, when they won 14 out of 19 La Liga home games and only lost once.

Real Madrid are yet to win at the Bernabeu in La Liga this season

After such a poor start to the new campaign, matching last season's points total of 93 already looks like a tall order.

The Bernabeu crowd have reacted angrily to their poor performances, and the boos certainly seem to have affected the players. "When we are at home, if we don't score early we tend to get anxious," admitted Isco after the Betis game.

Zidane has urged his players to use the boos as motivation, but at the moment it seems to be taking a psychological toll.

Cristiano Ronaldo is yet to score in La Liga this season

There have also been questions over some of Zidane's decision-making. The Frenchman had great success with his rotation policy last season, but Madrid can no longer call on Alvaro Morata, while James Rodriguez is gone, too.

Despite those departures, Zidane has not changed his approach, with only three teams in La Liga making more line-up changes. Is he tinkering too much, too early in the season?

His substitutions of Isco and Luka Modric against Real Betis were widely criticised, and it was also strange to see him switch to a back three in that game.

Only Sevilla and Athletic have made more line-up changes than Real Madrid

My understanding is that Real Madrid had never trained in that formation, so it was hardly surprising that they looked lost in the closing stages.

The general sense of mismanagement was summed up by a bizarre moment in the second half when confusion on the bench left Real Madrid with 12 players on the pitch before the referee intervened.

All in all, Zidane and Real Madrid have plenty to work on. And with the gap to Barcelona already at seven points, they cannot afford many more slip-ups.

Watch live coverage of Real Madrid v Espanyol in La Liga on Sunday from 7.40pm on Sky Sports Football.