Diego Schwartzman earned four Top 10 wins in 2019, and he will try to take all the confidence he can from that as he leads Argentina into the inaugural ATP Cup.
Schwartzman will be joined by a formidable No. 2 singles player in Guido Pella, the 29-year-old lefty who reached a career-high ATP Ranking of No. 20 in 2019 and Cordoba champion Juan Ignacio Londero. Maximo Gonzalez and Andres Molteni, who have won 13 ATP Tour doubles titles between them, complete the team that will face Austria, Croatia and Poland in Group E action in Sydney.