Simon Reed
BBC Sport commentator at Wimbledon

Osaka is being patient, biding her time.

Katie Falkingham
BBC Sport at Wimbledon

Image source, BBC Sport

Centre Court was jam-packed for Novak Djokovic's win a little earlier, but the stands are half-empty for Naomi Osaka's match against Yulia Putintseva.

Has everyone gone for a late lunch?

But the second break point is a different matter. Osaka, showing her power and strength, sends Putintseva sprinting around the court before blasting away a winner to take the break.

A double fault from Putintseva gives Naomi Osaka the first break point of the match, but she doesn't do much with it, sending a return halfway up the net. Deuce.

Don Wimble: Osaka vs Poots and Venus vs Gauff. The women's draw is the place to be on day 1 of Wimbledon.

An excellent Twitter handle choice.

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Some nifty footwork from Osaka sees her send away a winning volley at the net before she shows the strength of her serve, taking that game to love.

Tracy Austin
Two-time Grand Slam champion on BBC TV at Wimbledon

Naomi Osaka has just become much more consistent. She has always hit the ball with pace, but she wasn't willing to extend the rallies a couple of weeks ago.

I'm sure Osaka was not excited to see Putintseva's name next to her's in the first-round match. She makes you hit a lot of balls and she has tremendous defensive skills.

Image source, Getty Images

Anna Thompson
BBC Sport at Wimbledon

It's probably fair to say that Pierre-Hugues Herbert would not normally command much attention this early on during a Wimbledon fortnight.

But after being announced as Andy Murray's doubles partner for the tournament, he was in demand with the media after his first round singles defeat to Kevin Anderson.

And the 28-year-old admitted he was feeling the pressure around partnering Murray, who is on his playing comeback from hip surgery.

Herbert, who won the men's doubles title here in 2016, said: "I actually feel more pressure than ever. But, no, it's something so special.

"I'm feeling lucky, and I'm so motivated and pumped to play with Andy and to have the luck to play with him here in Wimbledon. I'm looking forward to that, but it's for sure something new for me and new experience."

The Frenchman revealed he had not been feeling well ahead of his singles match but would be fine to play with Murray.

Osaka wins the first two points off the match, but Putintseva recovers to start with a first-game hold.

A few stories elsewhere on our tennis index...

• Novak Djokovic starts Wimbledon 2019 title defence by beating Philipp Kohlschreiber
• Heather Watson through to second round
• Venus Williams match 'a dream' for 15-year-old Wimbledon qualifier Cori Gauff
• Petra Kvitova column: Wimbledon, 'unusual' arm injury & Melbourne pain

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Yulia Putintseva starts us off.

Philip: I get the sense that Osaka is feeling a hell of a lot of pressure here. She’s already admitted that she’s struggled with expectations, and Putintseva is a useful player. An upset on the cards?

Naomi Osaka will be looking to get some immediate revenge on Yulia Putintseva. They played a couple weeks ago in the second round of the Nature Valley Classic in Birmingham and Osaka was thrashed 6-1 6-3.

Image source, Getty Images

Tracy Austin
Two-time Grand Slam champion on BBC TV at Wimbledon

Naomi Osaka broke up with her coach and she admitted it took time to get used to her new coach.

She has to be able to understand the grass and she has to be comfortable with its movement. A lot of people feel intimidated by this surface.

Image source, Getty Images

Naomi Osaka, who only lost her position as the best women's player in the world last week when Ashleigh Barty became number one, is next up on Centre Court.

Standing in her way is Yulia Putintseva of Kazakhstan, the world number 39.

Despite winning two Grand Slams, Osaka has never got past the third round here.

Novak Djokovic, on teaming up with 2001 Wimbledon champion Goran Ivanisevic: "I've looked up to him - he comes from Croatia, I come from Serbia we used to be one country, Yugoslavia - when I was a kid I was looking up to Pete Sampras and Goran.

"We all cheered him on and wanted him to win. I remember I was part of that preparation for Wimbledon when he stayed for a couple of weeks in Germany where I was training, I was 13/14.

"I considered myself bringing a lot of contribution to his win! We go back a pretty long time.

"He's coached lots of great players, so it's great to have him on my side. He is going to stay through the first week and then we'll see. It's a great experience to have a champion and someone I consider a good friend, hopefully we can have a long collaboration."

Image source, Getty Images

Boris Becker
Three-time Wimbledon champion on BBC TV

I thought the first set quality was below par from both players, but once Novak Djokovic won the first set, it was good for his game and he raised the level. His serve picked up too - maybe it's the Goran Ivanisevic effect.

Novak Djokovic, after his straight sets win over Philipp Kohlschreiber: "It felt great. It's a sacred court. It has a very special place in my heart, in my career as well. As a youngster I wanted the most to play at Wimbledon and win it. I have been very blessed. The memories come back and it's a great feeling.

"First opening rounds are always tricky. If you get a quality opponent like Kohlschreiber who beat me earlier this year at Indian Wells. I know he's capable of some quality tennis. It was a great test for me, I won in straight sets but all three were pretty close."

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Serbia's Janko Tipsarevic is celebrating his first Wimbledon win in seven years after he defeated Japan's Yoshihito Nishioka 6-4 6-7 (2-7) 6-2 5-7 6-2.

Tipsarevic will do well to progress any further in the tournament though as fourth seed Kevin Anderson is next on the horizon.