Carlos Alcaraz made his Grand Slam debut at age 17 and did so with a win. The Big 3 also debuted very young in the Majors but being the three players with the most Grand Slam trophies won, not all had the expected debut in this type of championship.
Your Majesty had his first match in a Major at 1999 Roland Garros, title with which it could rise only once. The Swiss faced the 3rd in the world at that time: Patrick Rafter. It was the triumph of the Australian, who would reach the third round, by 5-7, 6-3, 6-0 and 6-2.
The one from Manacor is the only member of the Big three to have debuted with victory in a Grand Slam tournament. Nadal started his way in the 2003 Wimbledon and his rival was the Croatian Mario Ancic, 68th in the ranking at that time. The winner of 13 Roland Garros trophies prevailed 6-3, 6-4, 4-6 and 6-4 to then reach the third round, where he could not before the Thai Paradorn Srlchaphan, 11th in the world.
Novak Djokovic he also had an adverse presentation. He fell for a categorical 6-0, 6-2 and 6-1 against Marat Safin at the 2005 Australian Open. The Russian then was a finalist of the tournament, where he could not before Roger Federer.