Cristiano Ronaldo leaves little to the imagination as he promotes his own brand of boxers

Cristiano Ronaldo left little to the imagination in his attempt to sell some of his own merchandise as he posed in nothing but a pair of CR7 Underpants for a photo posted to Instagram.

The 33-year-old showed off his chiseled figure standing next to his reflection in a window and accompanied the photo with the caption: 'Double trouble'.

The promotional snap had accumulated over two million likes within three hours of its publication, showing his marketing prowess is just as big as the footballing equivalent.

His revealing pictures follows reports that he is to sit out his side's La Liga trip to Las Palmas on Saturday in order to be in prime shape for Tuesday's Champions League quarter-final first leg at Juventus.

Ronaldo has been in resurgent form after a slow start to the season and has scored 18 times in the league in 2018, plundering four goals in a 6-3 win over Girona in Real's last game.

He struck both goals in Portugal's 2-1 win over Egypt on March 21 and started the 3-0 defeat by the Netherlands on Monday.

Real trail runaway leaders Barcelona by 15 points and are third in the La Liga standings.

Spanish daily Marca said Ronaldo has agreed with coach Zinedine Zidane to remain in Madrid while his team mates make the two-and-a-half hour plane journey to the Canary Islands.

Ronaldo, 33, has started and scored in all eight of Real's Champions League games this season and is the runaway top scorer in the competition with 12 goals.

He has been persuaded to skip the occasional league game, particularly away from home, and was rested for Real's 2-1 win at Leganes and their 1-0 defeat at Espanyol in February

Ronaldo did not feature in any of his side's six games in the Copa del Rey.

Real's quarter-final tie with Serie A leaders Juventus is a repeat of the 2017 Champions League final, which the Spanish side won 4-1 with two goals from Ronaldo.