Coco Gauff suffers surprise defeat to Katerina Siniakova in Qatar

Coco Gauff was beaten by Katerina Siniakova in Doha (Hussein Sayed/AP)

Coco Gauff lost six games in a row in a shock defeat by Katerina Siniakova at the Qatar Open.

Making her first appearance since losing to Aryna Sabalenka in the semi-finals of the Australian Open last month, Gauff was out of sorts and fell to a 6-2 6-4 defeat.