World number two Carlos Alcaraz slumped to a shock straight sets loss to Chile's Nicolas Jarry in the semi-finals of the ATP Buenos Aires tournament on Saturday. Defending champion Alcaraz, playing in his first tournament since losing in the Australian Open quarter-finals, was beaten 7-6 (7/2), 6-3 by his 28-year-old opponent. Two-time Grand Slam champion Alcaraz had been hoping to reach his first final since losing to Novak Djokovic in the Cincinnati Masters in August and clinch a first title since Wimbledon in July.