In pictures: Cristiano Ronaldo continues scoring hot-streak as Juventus beat Roma in Copa Italia

Portuguese attacker grabs 13th goal in ten games to help Juve reach semi-finals

Juventus forward Cristiano Ronaldo celebrates after opening the scoring against Roma in the Copa Italia. AFP

Cristiano Ronaldo shoots on goal. AFP

Left to right: Juventus' Miralem Pjanic and Cristiano Ronaldo battle for possession with Gianluca Mancini of Roma. EPA

Cristiano Ronaldo, right, celebrates after scoring. EPA

Cristiano Ronaldo and Chris Smalling of Roma. EPA

Cristiano Ronaldo celebrates at the end of the match. EPA

Juventus' Rodrigo Bentancur makes it 2-0. EPA

Left to right: Gianluigi Buffon, Cristiano Ronaldo and Gonzalo Higuain after the match. AFP

Chris Smalling and Cristiano Ronaldo. AFP

Leonardo Bonucci celebrates after scoring. AFP

Juve striker Gonzalo Higuain. AFP

Juventus fans during the match. AFP

Leonardo Bonucci, left, makes it 3-0. EPA

Cristiano Ronaldo scores. EPA

Juventus goalkeeper Gianluigi Buffon after the match

Cristiano Ronaldo. AFP

Cristiano Ronaldo celebrates with Juventus mascot J the zebra. AFP

Gonzalo Higuain and Lorenzo Pellegrini. EPA

Chris Smalling and Juventus Cristiano Ronaldo. AFP

Juve goalkeeper Gianluigi Buffon cannot stop Roma forward Cengiz Under (not in picture) from scoring. AFP

Juventus manager Maurizio Sarri gave his thanks to Cristiano Ronaldo's mother as the Portuguese star extended his red-hot scoring streak in a 3-1 win over Roma in the Copa Italia quarter-finals on Wednesday.

Ronaldo picked up a Gonzalo Higuain cross after 26 minutes, finishing off from an angle to open the scoring at the Allianz Stadium.

It was the 34-year-old's 13th goal in ten games for the Turin giants, but it was his first strike in the Copa Italia. The five-time Ballon d'Or winner has also scored seven goals in four matches played this year.

"I believe that the compliments should be made to his mother," said Sarri of Ronaldo, who has now scored in 15 different club competitions throughout his career.

"He is in super form physically. In terms of explosiveness he is doing well, he takes great care of the details.

"It is difficult to improve on an individual level. We are talking about one of the greatest of all time and I would like to help him win a sixth Ballon d'Or.

Rodrigo Bentancur added a second goal after 38 minutes with defender Leonardo Bonucci nodding in a third just before the break.

Cengiz Under pulled a goal back for Roma five minutes after halft-time, rifling in from a distance with the ball hitting the crossbar and bouncing in off veteran goalkeeper Gianluigi Buffon in the Juventus goal.

Buffon, 42, denied Alessandro Florenzi and Aleksandar Kolorav to keep Juventus on course in the competition they have won 13 times.

Brazilian Danilo limped off before the break to be replaced by Juan Cuadrado, leaving Sarri with an injury worry ahead of this weekend's trip to Napoli.

Roma, fourth in the league, were struggling with injuries while Edin Dzeko was sitting out a ban, but their form was worrying just four days before their derby clash against city rivals Lazio.

"The difference in the first half was efficiency," said Roma manager Paulo Fonseca. "The first chance they had, they scored. The same for the second.

"We know that Edin Dzeko is a very important player for us and his ban was damaging, but the forwards could have done much better this evening."

Juventus – who lost the Italian SuperCup last month to Lazio – will play either AC Milan or Torino in the semi-finals.

Holders Lazio were eliminated in the quarter-finals on Tuesday with a 1-0 loss to Napoli.

Italy international Lorenzo Insigne needed just 99 seconds to score the goal that won a match in which both teams had a player sent-off and Serie A top scorer Ciro Immobile missed a penalty in the first 25 minutes.

AC Milan travel to Torino next Tuesday with Inter Milan hosting Fiorientina. The final will be played on May 13 in Rome