Cristiano Ronaldo: all of his debuts!

By UEFA.com's reckoning, Juventus's UEFA Champions League opener will be the 14th significant debut of Cristiano Ronaldo's career; he scored seven goals in the previous 13. Is he due one or two more at Valencia?

LIVE COVERAGE: VALENCIA v JUVENTUS

First professional game
Sporting CP 0-0 Internazionale Milano
14/08/02, UEFA Champions League third qualifying round

Ronaldo was a sub for Sporting's first competitive game of the season and came on with nearly an hour gone. UEFA.com reporter Pedro Marques remembered him "doing a couple of dribbles down the right, to the delight of the crowd, but nothing decisive enough to help Sporting break the deadlock".

First domestic league game
Braga 4-2 Sporting CP
29/09/02, Portuguese Liga

Coming off the bench for his United debut©Getty Images

First Man. United game
Man. United 4-0 Bolton
16/08/03, Premier League

Ronaldo did not score but left an impression on the BBC's match reporter, who wrote: "The afternoon belonged to Portuguese wonderkid Ronaldo, who displayed the dazzling skills that convinced Sir Alex Ferguson to bring him to the self-styled Theatre of Dreams."

At Stuttgart in his first #UCL game©Getty Images

First UEFA Champions League proper game
Stuttgart 2-1 Man. United
01/10/03, group stage

Ruud van Nistelrooy scored United's goal from the spot after Ronaldo had been fouled by Stuttgart goalkeeper Timo Hildebrand while chasing a loose ball into the box.

First senior international game
Portugal 1-0 Kazakhstan
20/08/03, friendly international

Celebrating his first domestic cup win©Getty Images

First domestic cup final
Man. United 3-0 Millwall
22/05/04, FA Cup

Ronaldo nodded his team in front against lower-league opponents in a one-sided final in Cardiff, Van Nistelrooy netting twice to complete a comfortable win.

First competitive international game
Portugal 1-2 Greece
12/06/04, UEFA EURO 2004

Ronaldo conceded the penalty from which Greece doubled their lead against the hosts in the opening game of the tournament, but made some amends with a late headed goal at the other end.

In a dark place during the UEFA EURO 2004 final©Getty Images

First international final
Portugal 0-1 Greece
04/07/04, UEFA EURO 2004

"We had a fantastic team, we have played a great tournament and we don't deserve to lose like this," said an emotional Ronaldo at full time. "I have to look forward. There will be many other opportunities to win in Europe throughout my career and make up for this huge disappointment."

Tasting victory with his first #UCL winners' medal©Getty Images

First UEFA Champions League final
Man. United 1-1aet Chelsea (United win 6-5 on pens)
21/05/08, Moscow

"I thought we were going to lose," said Ronaldo, who scored in normal time and then had a penalty saved in the ensuing shoot-out, only for John Terry's miss to reprieve United. "It is one of the best days of my life."

First Real Madrid game
Real Madrid 3-2 Deportivo La Coruña
29/08/09, Liga

Ronaldo debuted with a goal from the penalty spot.

Enjoying his first #UCL game for Real Madrid©Getty Images

First UEFA Champions League game for Real Madrid
Zürich 2-5 Real Madrid
15/09/09, group stage

Ronaldo struck twice from free-kicks to open his Real Madrid account in Europe, the first a cracker after 27 minutes and the second described by UEFA.com as a "tame" effort which "was punched by [Zürich keeper Johnny] Leoni into the roof of his net".

First UEFA Champions League final for Real Madrid
Real Madrid 4-1aet Atlético
24/05/14, Lisbon

Ronaldo's spot kick made it 4-1 on the night and took his tally to a competition-record 17 for the season. "It was an extraordinary year both on collective and individual levels," he said. "I could not have imagined this in my wildest dreams."

First Juventus game
Chievo 2-3 Juventus
18/08/18, Serie A

First UEFA Champions League game for Juventus
Valencia v Juventus
19/09/18, group stage