Great Britain's Emma Raducanu suffered a calamitous collapse to bow out of her inaugural Miami Open tournament in the second round against Katerina Siniakova in three sets.
The US Open champion was seemingly on the way to victory after taking the first set, but unforced error after unforced error saw her go down 6-3 4-6 5-7 to her counterpart.
Siniakova had to keep her emotions in check after going 5-3 down in the first set, with the Czech Republic player slipping as Raducanu broke her serve before the Brit held in her next game.
Raducanu also posted an early break in the second set, but Siniakova came storming back to force a deciding third set, where Raducanu had the opportunity to serve for the match at 5-4 up.
However, the 19-year-old could not do so, and Siniakova broke her opponent's serve once more in the 12th game of the third set to advance to the third round, with Raducanu failing to take 12 of her 17 opportunities to break on the day.
One Brit's marathon match did end in success earlier on Thursday, though, as Heather Watson won her three-set thriller with Elina Svitolina 4-6 6-3 7-6 [7-4] to book her spot in round three.
