The 29-year-old central defender comes in to the defending world champions 26-man squad after Balerdi suffered a leg injury earlier this month.
Senesi had an outstanding season for Premier League side Bournemouth, becoming a pivotal figure in them making club history as they will play in European club competition for the first time next season.
However, despite the promise of Europa League action Senesi declined a new contract, the ball-playing defender preferring a free transfer to a Spurs outfit who narrowly avoided relegation last season.
Argentina kick off their World Cup title defence on June 16th against Algeria in Kansas City.
FIFA World Cup 2026
The 2026 World Cup will be held from June 11th to July 19th in the United States, Canada and Mexico. The tournament will feature 48 national teams and will be played in 16 modern stadiums.
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