Since Friday it has been the most talked about chin in the world.
When Cristiano Ronaldo scored the opening goal against Portugal's Iberian rivals Spain, he wheeled away, executing his trademark 'siuuuu' celebration before frantically rubbing his chin with the ferocity of Aladdin hoping to entice the genie from the lamp.
Social media went into overdrive. Why did he do it? Did it have a hidden meaning? Was it a dig at Lionel Messi?
Barcelona's bearded captain Messi, of course, was the centrepiece of an advertising campaign before the World Cup which saw him posing with a goat. GOAT is an acronym for 'greatest of all time'.
He's also Ronaldo's arch-rival in the seemingly never-ending debate over who is the best player in the world.
Ronaldo took things up a notch in the intrigue stakes by sporting a goatee in Wednesday's clash with Morocco in Moscow.
The questions will start again and people will speculate and pontificate as though it matters and, of course, it does not. Not one iota.
2 - Cristiano Ronaldo has become the first Portugal player since José Torres in 1966 to score a goal with his right foot, left foot and head in a single World Cup tournament. Collection. #POR #MAR #PORMAR #Ronaldo #WorldCup pic.twitter.com/liZrUSyXmq— OptaJoe (@OptaJoe) June 20, 2018
The focus should not even be on their talent. That has also been discussed long and often.
What stands out most when you watch Ronaldo and Messi is their work-rate and their dedication to their craft even though, as one press box colleague sagely noted, they occupy opposite roles in their national teams.
With Argentina, Messi is asked to do everything. He is inspiration, creator and goalscorer. Even for one so magically gifted it is too much.
For Portugal, everything is done for Ronaldo. He simply adds the gloss, the finishing touches, the icing on the cake. Admittedly, this is a latter-day incarnation of Ronaldo; CR7 2.0. The previous version was the swashbuckling winger with the mesmerising feet who could tear teams apart singlehandedly.
Across both, he has now managed 85 goals for his country - his 85th coming in the fourth-minute at the Luzhniki Stadium, a brave header among the flying boots to give his team a fourth-minute lead.
It moved the Real Madrid man second on the all-time list of international goalscorers, ahead of Ferenc Puskas and behind Iran's Ali Daei.
It also proved enough to win a low-key encounter but even that was largely down to the 33-year-old's desire in his own box, frequently heading away Morocco set-pieces at the near post. Add in the link-up play and the frequent cajoling of team-mates and it all added up to another satisfying afternoon for Ronaldo.
Not that it was appreciated by everyone in Moscow, though. After lashing a wonderful chance high over the bar at the start of the second half, cries of "Messi, Messi" cascaded down from the stands.
Ronaldo could have the last laugh as he will likely lead his team into the round of 16 here in Russia while it remains uncertain that achievement will be matched by Messi following Argentina's opening-match draw with Iceland.
Time will tell.
As for the GOAT, the argument and, in particular, the goatee, it's best to ignore.
We'd be splitting hairs.
|Rogic, Kruse to miss Socceroos´ Lebanon friendly|
|Joerger has Kings´ ´full support´, says GM Divac|
|England seal series win over Sri Lanka|
|Butler´s heroics spoil Walker´s 60-point game as 76ers beat Hornets|
|He´s an honest guy – Djokovic defends Zverev after Finals controversy|
|Bonucci boos a ´mistake´ by fans, says Mancini|
|Ronaldo still part of Portugal squad – Santos|
|Santos satisfied as Portugal reach Nations League Finals|
|Howell holds onto RSM Classic lead|
|McLeish optimistic as Scotland zero in on Nations League promotion|
|Luis Enrique rejects criticism of Spain star De Gea|
|Schmidt dismisses Hansen´s Ireland World Cup favourites claim as ´banter´|
|There are always imbeciles – Bonucci hits back at fans after frosty San Siro reception|
|Portugal draw ´a step forward´ despite poor finishing – Mancini|
|Ireland were just too good - Read|
|Thomas at the double as France end losing streak|
|Albania 0 Scotland 4: Forrest double sets up promotion showdown|
|Italy 0 Portugal 0: European champions outplayed but secure Finals spot|
|Sensational Djokovic marches into final|
|Stander lauds Ireland´s ´unreal´ defence as All Blacks are thwarted|
|Dazzling Ireland claim historic All Blacks scalp in Dublin|
|Federer unimpressed with Zverev boos|
|Let´s get it on! Cheika relishing England clash|
|Croatia coach Dalic to speak with Lovren over Ramos remarks|
|Xhaka puts improved form down to ´freak´ Emery|
|De Gea not lacking confidence, says Spain´s Saul|
|Jordan goalkeeper scores from own penalty area in friendly against India|
|Pollard leads Springboks to Murrayfield victory|
|Fired-up Japan taught England a great lesson - Jones|
|Sarries leave it late to down Sale, Bath and Saints win|
|O´Shea fumes at disallowed Italy try|
|Southgate welcomes England selection quandary|
|Reaching Rooney´s England goals record ´definitely possible´ – Kane|
|Debut try for Cokanasiga as England rally to avoid Japan upset|
|Wembley will galvanise ´tired´ Croatia, insists Dalic|
|Zverev apologises for tie-break controversy amid O2 Arena heckles|
|Marquez happy with fifth after damaging shoulder in Valencia|
|Wales crush Tonga in Cardiff|
|Germany should keep faith in old guard - Bierhoff|
|Injured Lukaku to miss Belgium´s Nations League decider|
|Zverev knocks out Federer to reach maiden ATP Finals showpiece|
|Koroibete double maintains Australia´s 100 per cent record against Italy|
|Juventus´ Khedira sprains ankle in training|
|Van Dijk: Ramos is not my type of defender|
|Vinales grabs Valencia pole as Marquez crashes|
|I don´t deserve Ballon d´Or, Mbappe does – Hazard|
|Reed and Willett share lead in Dubai|
|Romagnoli joins long AC Milan injury list|
|Williamson steadies Black Caps after Boult heroics|
|Griezmann targets swift French response against Uruguay|
|Havertz´s future lies with Bayer Leverkusen – sporting director Boldt|
|Socceroos boss Arnold excited for future|
|South Africa triumph on Gold Coast in truncated T20 clash|
|Germany without Draxler for Netherlands game|
|Barcelona confirm Rakitic hamstring injury|
|Rain halts England´s post-tea flourish|
|Australia 1 South Korea 1: Luongo seals late draw for Socceroos|
|Irving thrives on ´peace´ of being in the zone|
|Lloris admits France could have lost by more|
|Dybala impressed by Argentina´s improved spirit|
|Arsenal chief confirms Super League talks|
|Hooker knocks out Saucedo to retain WBO strap|
|NBA wrap: Kyrie Irving sizzles as Celtics beat Raptors in overtime|
|Jimmy Butler aims dig at Timberwolves following 76ers home debut|
|Koeman surprised by dominant Netherlands|
|Southgate rallies England ahead of Nations League decider|
|Chile 2 Costa Rica 3: Waston brace sinks La Roja|
|Tite inspired by Guardiola´s City|
|Argentina 2 Mexico 0: Funes Mori´s header helps to sink El Tri|
|Lovren ready for ´fiery´ England clash|