The Spaniard will be missing the season's opening Grand Slam event, which begins in Melbourne on Monday, due to a muscle problem in his right leg.

"I'm really looking forward to starting my season in Buenos Aires this year, playing in a historic tournament that has been won by great champions," the U.S. Open champion, who is the first teenager to top the ATP rankings, said in a statement.

"The truth is I was very keen to go to Argentina, to play there, so I hope to see you all soon."

Alcaraz missed the ATP Finals and Davis Cup at the end of last season after tearing an abdominal muscle during the Paris Masters. Last month he said that he was back to almost full fitness but then suffered a setback by picking up the leg injury during pre-season training.

Alcaraz will join Diego Schwartzman, Cameron Norrie, Dominic Thiem and Lorenzo Musetti in the Argentina Open field.