Maria Sharapova speaks to the press after her first-round win over Roberta Vinci in Stuttgart.

Maria Sharapova speaks to the press at the Porsche Tennis Grand Prix in Stuttgart following her 7-5, 6-3 first round win over Roberta Vinci.

"My job is as a competitor and as a tennis player to go out on the court and to perform no matter if I’m having a tough day or an easy day," she siad. "There are people in the stands who bought a ticket and they are going to watch you play, and so you have to show them what you’re capable of doing."

Sharapova next faces fellow Russian Ekaterina Makarova, but not before answering questions from a large throng of reporters.

"I trained quite intensively since January but it’s been in different phases. I spent a lot of time in the gym and then I moved on to the court before I started playing matches in the last few weeks.

"So, it’s a process and of course you want to have that smooth transition. But nothing in training is like going out there today. I was definitely rusty. I made a few return unforced errors. I could name a lot of things. But overall I got through it and that’s the process I look forward to getting through."

Click here for our live blog of the match, including video from Stuttgart.