Americans Steve Johnson and Jack Sock opened the Infosys Hall of Fame Open with straight-set wins Monday in Newport, R.I.

Johnson, who won the tournament in 2018, beat countryman Stefan Kozlov 7-5, 6-3. Johnson out-aced Kozlov 6-0 and won a dominant 31 of 37 first-service points (83.8 percent).

Meanwhile, Sock topped Radu Albot of Moldova 6-1, 7-6 (2). Sock saved four of five break points, including two set points down 6-5 in the second set to ensure a tiebreak.

In an all-Australian duel, Jason Kubler defeated Jordan Thompson 6-2, 6-3, and Germany’s Peter Gojowczyk topped Ugo Humbert of France 7-5, 6-4.

Nordea Open

Fifth seed Pablo Carreno Busta took down Swiss qualifier Stan Wawrinka 7-5, 6-4 in the first round in Bastad, Sweden.

Carreno Busta coped with Wawrinka’s 10 aces and controlled the match, winning 30 of 35 first-service points (85.7 percent) and never facing a break point.

Laslo Djere of Serbia beat Italian Lorenzo Musetti 6-3, 7-5, and Swedish wild card Elias Ymer was a 6-4, 7-6 (5) winner over German Daniel Altmaier.

–Field Level Media