Cameron Norrie was unable to secure his maiden Masters 1000 main draw victory as he lost to Chile’s Nicolas Jarry 7-6 (7-3) 6-2 in the Miami Open first round.
The 22-year-old came through two rounds of qualifying in Florida to reach back-to-back Masters 1000 main draws but like at Indian Wells lost in his opening match.
Norrie, at a career-high world No 105, matched his opponent in the first set but after losing the first set on a tiebreak was unable to wrestle the match back in his favour.
The British player was bidding to join Australian Open semi-finalist Kyle Edmund in the second round but was broken twice by the world No 65 to fall to a one hour and twenty-two minute defeat.
Jarry, who reached the Rio Open semi-final last month before losing to Diego Schwartzman, will next face the diminutive Argentinean 13th seed in the second round.
In the women's draw Katie Boulter was unable to build upon her impressive run through the qualifying rounds as the British No 5 fell to the experienced Su-Wei Hsieh from Taipei.
The world No 208 joined defending champion Jo Konta and Heather Watson in the main draw but suffered the same fate as British No 2 Watson, who lost 7-6 6-2 to Brazil's Beatriz Haddad Maia on Tuesday.
Elsewhere, Liam Broady was due to meet fellow qualifier Bjorn Fratangelo in the first round.
You can watch more ATP Masters 1000 action from the Miami Open when we continue our coverage on Sky Sports Arena on Thursday at 3pm.
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