Stan Wawrinka says that he is taking positives from playing his first event since experiencing a knee injury at the Australian Open, despite a first-round exit in Dubai.
Wawrinka, the defending champion, fell in straight sets to Damir Dzumhur.
"When you come back from injury, you always think a little bit," he told reporters following his first-round defeat, but added that he was pleased his knee held up.