Britain's Johanna Konta is out of the Brisbane International after losing in three sets to Barbora Strycova in the first round in Australia.
World number 12 Konta, 28, forced a decider after Strycova had dominated the opening set - but the Czech eventually won 6-2 3-6 6-3.
Konta has not beaten Strycova, ranked 31st, in three attempts, including in the 2019 Wimbledon quarter-finals.
Strycova, 33, will play Alison Riske or Karolina Muchova in the second round.