Angel Di Maria, Alexis Mac Allister and Lautaro Martinez rescued Argentina on Tuesday as the world champions came from behind to beat Costa Rica 3-1 in an international friendly in Los Angeles.Argentina got back on level terms early in the second half with a superb equaliser from veteran Di Maria on 52 minutes.
Sinner recovered from early difficulties to beat Christopher O’Connell 6-4 6-3 to reach the quarter-finals.
Wales lost 5-4 on penalties to Poland after a goalless 120 minutes in Cardiff.