Cristiano Ronaldo has scored some pretty spectacular free-kicks throughout his career.

Fans will never forget his dramatic strike against Spain at the World Cup, his free-kick goal from improbable range at Arsenal and - of course - his iconic knuckleball strike against Portsmouth.

However, even Ronaldo's most passionate supporters will admit that his conversion rate from free-kicks has declined in recent years and the fear factor of old is starting to fizzle out.Aside from the occasional belter, Ronaldo has left fans frustrated with a number of efforts and many believe his technique is simply too inefficient.That's certainly a hypothesis being explored at the 33-year-old's latest club Juventus with many wondering whether he should really be the number one free-kick taker.

Juventus' free-kick system

The Old Lady have two incredible set-piece experts in Paulo Dybala and Miralem Pjanic with both players boasting a better conversion rate than Ronaldo.

And four months into Ronaldo's Juventus spell, Massimiliano Allegri revealed that the three players will start sharing responsibilities from now on.

"When there are free kicks from far away he [Ronaldo] can kick them but we've decided that Dybala and Pjanic will take set pieces close to the area," he informed Calciomercato this week.

Fans discuss Ronaldo's free-kicks

Fast forward to the weekend and fans got their first opportunity to see Juventus' new system in their clash with Cagliari, which they won 3-1.

It didn't take long for Ronaldo's free-kick taking to become a talking point either with the Portuguese getting a chance to show his expertise from long range in the second-half.

The result? A poor strike that was blocked by the wall.

And after a series of disappointing free-kicks, fans seemed to lose their patience on Twitter in spite of Allegri's new system. Check out some of the responses below:

Ronaldo just can't find his range at Juventus.

Fans will get a better idea about the efficiency of the system after a few more games, but Ronaldo's strikes from long range aren't exactly inspiring confidence.

The five-time Ballon d'Or winner has ticked almost every box since joining Juventus, it's just a shame his set piece prowess hasn't followed him to Serie A.

Allegri will have to debate whether Pjanic and Dybala should take over responsibilities across the board and at the end of the day, it's difficult to ignore the statistics.

Fans just want to see the goalkeepers challenged, something far more likely with a traditional curled effort as opposed to the trickier knuckleball technique that Ronaldo made famous.

Ronaldo provides plenty of goals from other situations and scenarios that a change shouldn't harm either player or club going forward.

However, you just never know when a Ronaldo special is going to pop up.

Who do you think should take Juventus' free-kicks - Pjanic, Dybala or Ronaldo? Have your say in the comments section below.