Maria Sharapova said she is "not overly confident" in her pursuit of a sixth grand slam title after making a winning start at the Australian Open in Melbourne.
Former world number one Sharapova marked her first match in Australia since 2016 with a 6-1 6-4 victory over Tatjana Maria at Melbourne Park on Tuesday.
A 15-month doping ban after testing positive for meldonium – dating back to the 2016 Australian Open – forced the five-time major winner to skip last year's tournament.
However, it was business as usual for Sharapova on Margaret Court Arena as the Russian star saw off Maria to reach the second round.
Asked how confident she is of winning the Australian Open, Sharapova told reporters: "I think confidence comes with time and with match play and putting yourself in situations where you're able to take those opportunities.
"I know that nothing will be handed to me or anyone. You have to work for every point in a match. It's too far to tell. I'm not overly confident.
"I have expectations because of my previous results in my career, and I know at what level I can play and what tennis I can produce. But I'm also realistic, and the process of coming back takes time. I keep building and learning."
Sharapova was a class above in the opening set as she broke in the first game but Maria produced a spirited display in the second.
Maria, playing behind the baseline, found her rhythm, however, Sharapova claimed five of the final six games to cruise into the next round.
"It felt pretty routine," the 30-year-old said. "I have been here a week, practising on the courts. Got used to all the different weather conditions that Melbourne presents to all of us. It's been good.
"I felt like I have got a lot of things out of the way physically and emotionally and mentally last year with - there was a lot of firsts again for me, playing the first tournament, first grand slam, and just different feelings and what it would be routinely. But it felt pretty routine today, just really happy to be back here."
Sharapova continued: "I feel like I'm building. I feel like with every tournament and every week I have different feelings about different things. Some things are coming a little slower than I wanted. Some things I feel good about.
"Still feel like I'm building physically and getting the match play in. I'm motivated to, with every week, to keep taking in what I have learned from that week and using it to my advantage in the following tournament. As long as I have that in my mind, it's okay."
19 de febrero 2018
|Why didn´t Jimmy Butler play in NBA All-Star Game?|
|Returning Ringrose added to Ireland Six Nations squad|
|Hummels wary of ´top European team´ as Bayern prepare for Besiktas|
|In-form Kvitova withdraws from Dubai|
|WATCH: ´Crazy´ Evra drives to West Ham training in London cab|
|Barca clash a chance for Chelsea ´to do things right´, proclaims Rudiger|
|Lucas claims Tottenham can win Champions League|
|Federer the ´complete player´ with number-one return - Schuettler|
|LeBron relishes one more link-up with Irving|
|Barcelona tie will not decide Conte´s Chelsea future, says Deco|
|Cordner signs bumper deal with Roosters|
|Lewandowski won´t be distracted by Real Madrid rumours|
|Bennett signs on until 2019 with England|
|Man Utd must not underestimate Sevilla - Navas|
|Coleman demolishes 20-year-old 60m world record|
|Red Bull reveal ´special edition´ livery on 2018 car|
|Iniesta will not be made welcome at Stamford Bridge, warns Azpilicueta|
|Ballack sees ´a big difference´ between Bundesliga and Premier League|
|Karmichael Hunt faces no conviction, but will remain sidelined|
|Betis boss would have preferred to face Madrid´s BBC|
|Chelsea v Barcelona: Messi´s blues against the Blues|
|James leaving Madrid was the best thing, says father|
|He´s looking good – Zidane thrilled with Ronaldo|
|It needs to take 30 seconds – Matic wants quicker VAR|
|Team LeBron edges Team Stephen in thrilling All-Star Game|
|McIlroy sees progress despite failing to contend at Riviera|
|Silver supports NBA players speaking out on social issues|
|Mickelson ready for Masters after third straight top-six finish|
|Gattuso: My job is to be the players´ nightmare until season´s end|
|I wasn´t good enough – Guardiola reveals Wigan rejection|
|Dillon reigns supreme with overtime win at Daytona 500|
|Bubba Watson ends drought with third Genesis Open title|
|Brazilian derby between Vitoria and Bahia abandoned after red-card frenzy|
|Anderson ends barren spell with New York Open triumph|
|It was crazy, but I like that - Zidane revels in eight-goal Betis thriller|
18 de febrero 2018
|Asensio credits Zidane for Madrid´s thrilling Betis comeback|
|Zidane hopeful over Marcelo hamstring injury|
|Overton replaces injured Plunkett for Blacks Caps ODI series|
|Bonaventura claims Milan can catch Inter|
|Bravo for Claudio! Guardiola to pick keeper at Wembley|
|Mourinho hoping for reinforcements at Sevilla|
|´Quick-healer´ Groves hopeful over shoulder injury|
|Real Madrid become first side to score 6,000 goals in LaLiga|
|Real Betis 3 Real Madrid 5: Asensio at the double in LaLiga classic|
|AC Milan 1 Sampdoria 0: Bonaventura makes it 10 unbeaten for Rossoneri|
|Schurrle excited to finally link up with Reus and Gotze|
|Fit-again Hughes included in England squad|
|New number one Federer revels in ´unbelievable´ week|
|Real Madrid defender Marcelo suffers hamstring injury|
|Costa fumes referees ´want to give me a card´, but Simeone plays down penalty row|
|Thiem regains Argentina Open title|
|Stoger makes Dortmund history with Gladbach win|
|Championship Review: Leeds fight back for point, Norwich & Ipswich share derby spoils|
|Racing beat La Rochelle to go second, Castres edge out Bordeaux|
|Borussia Monchengladbach 0 Borussia Dortmund 1: Burki unbeatable as Reus returns to haunt Foals|
|FA Cup ´magic´ no surprise to Pochettino after Rochdale thriller|
|Rochdale hero Davies: This is every kid´s dream|
|Atletico Madrid will not stop in pursuit of Barcelona, promises Gameiro|
|Banks boot pays dividends for Treviso|
|Lucky 13 and second successive title for Kvitova after Muguruza classic|
|´Wrong image´ to blame for VAR confusion in Manchester United´s FA Cup win|
|Rochdale 2 Tottenham 2: Davies denies Kane in FA Cup classic|
|Rieder stretchered off as Wasps extend Chiefs´ slump|
|Atletico Madrid 2 Athletic Bilbao 0: Gameiro and Costa settle cagey clash|
|NHL commissioner Bettman condemns ´reprehensible´ Smith-Pelly abuse|
|Visser, Scott and Nel among six recalled by Scotland|
|Bhuvneshwar and Dhawan inspire India´s Wanderers win|
|Napoli set club record with another Serie A win|
|Froome disappoints in time trial as Wellens wins Ruta del Sol|
|Napoli 1 SPAL 0: Allan sends hosts top of Serie A again|