Jannik Sinner needed three sets to beat Benjamin Bonzi in his first match at the Madrid Open, but Ben Shelton suffered an early exit.
Belinda Bencic defeated Iga Swiatek, but Poland came back to prevail 2-1 over Switzerland in Sunday's United Cup showdown.
Poland advanced to their third consecutive United Cup final, defeating last year's champions, the United States, in the last four.
No matches available.
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