Andy Murray continued his comeback from hip surgery with victory in his opening match at the Shanghai Masters.
Murray recovered from a poor first set and survived two break points when he served for the match to beat Argentinian qualifier Juan Ignacio Londero 2-6 6-2 6-3.
Murray, who won back-to-back matches for the first time since his return in Beijing last week, will play Italy's Fabio Fognini in round two.
The Scot can expect to face a much sterner test against the 10th seed, after a series of forehand errors saw him slip to an early deficit against world number 289 Londero.
The Argentinian converted two of five break point opportunities in the opening set and held off all three on his own serve, to take a commanding lead.
Murray's expectations were clear in the way he vocally and visibly expressed his frustration after struggling to make the desired impression.
But the Scot was much improved in the second as he returned the favour, breaking his increasingly vocal opponent twice while not allowing him any openings on his own serve.
Murray squandered an early advantage in the deciding set when, having broken Londero to love to establish a 3-1 lead, he was immediately broken back.
But Murray let out a roar after claiming the third consecutive break and he would hold on for the win, despite falling 15-40 down when he served for the match.
Edmund loses to spot
Kyle Edmund will lose his status as British number one after suffering a sixth consecutive defeat at the Shanghai Masters.
The 24-year-old's dismal run of form continued as he fell to a 6-4 7-6 (3) loss to Frenchman Jeremy Chardy, who took advantage of his only break point of the match in the fifth game of the first set.
Edmund, who has not won since victory over Nick Kyrgios at the Rogers Cup in Montreal in August, is also set to crash out of the world's top 50 when the new rankings are announced next week.
While Dan Evans, who lost in Shanghai qualifying, is set to leapfrog Edmund to become British number one, Cameron Norrie also stands a chance after another win in China.
Qualifier Norrie beat experienced Frenchman Gilles Simon 7-5 6-2 but next faces a difficult test against US Open finalist Daniil Medvedev.
At the Tianjin Open, Heather Watson advanced to the second round with a 6-4 7-6 (3) win over Kateryna Bondarenko of Ukraine.