Cilic success in Memphis
Top seed Marin Cilic was taken to three sets on his way to a first-round win at the US National Indoor Championships in Memphis.
Cilic's fellow Croat Ivan Dodig fought well before going down 4-6 6-2 6-3.
An all-American contest bestween Rhyne Williams and Steve Johnson saw the former claim a 7-6(4) 6-4 success.
Poland's Lukasz Kubot defeated the United States' Ryan Harrison 6-4 6-7(4) 7-6.
In the women's competition number one seed Kirsten Flipkens defeated Shahar Peer 6-2 6-2 and second seed Sofia Arvidsson was also successful. She ousted Slovakian Jana Cepelova 6-4 6-4.
American Victoria Duval edged Johanna Larsson 3-6 6-1 6-3 and compatriot Jamie Hampton recorded a 6-3 6-3 victory over Garbine Muguruza, but a third home representative, Maria Sanchez. went down to Ukrainian Lesia Tsurenko.
Switzerland's Stefanie Voegele produced a decisive closing to set to seal a 7-6(5) 6-0 win over Silvia Soler Espinosa and Marina Erakovic moved past Annika Beck in three sets.