Overview
- The 22-year-old announced on social media that doctors advised him not to compete and said he was heading home.
- The thigh problem surfaced during his loss to Jannik Sinner in Sunday's ATP Finals championship match in Turin.
- Alcaraz had initially indicated he would play before reversing course following medical evaluation.
- The Spain–Czech Republic winner would face Germany in the semifinals if Germany beats Argentina in its quarterfinal.
- Italy is already without Jannik Sinner, who previously withdrew from the Davis Cup squad for workload reasons.