Katie Boulter admitted she had a bad day at the office after being dumped out of Wimbledon by teenage qualifier Tyra Caterina Grant.The British number two was beaten in straight set by 18-year-old Italian Grant, ranked 172 in the world.Boulter was Britain’s biggest hope of success this fortnight following Monday’s 10-player wipeout and the withdrawals of Emma Raducanu and Jack Draper.Tyra Caterina Grant, left, celebrated her first grand slam win (Adam Davy/PA) (PA Wire)But the 29-year-old was blown away by the fearless youngster, losing 6-4 6-2 in just an hour and six minutes.Reflecting on her first round-one exit since 2017, she said: “Not a good day at the office.“It’s not how I wanted to start, but I have to give credit to her. She’s a young girl who’s swinging, playing some fearless tennis.“I think she served incredibly well. I think ultimately for me she disrupted my rhythm the best she possibly could.“I didn’t get a break-point chance, and I have played a lot of the best servers on the tour. And I couldn’t read her serve, I couldn’t understand where it was going.“I think she played extremely well in the moment. She was fearless. She just kept going for it.“I think that’s what these 18-year-olds are so good at doing. They just get after it.“She seems like a very good player and has a good head on her as well. Full credit to her for firstly qualifying, and winning three matches is not easy. But then to play a great match today, she’s clearly up and coming.”Katie Boulter made an early exit on day two (Adam Davy/PA) (PA Wire)Grant making her grand slam debut, trained with Jannik Sinner as a child and cites Serena Williams as her inspiration.“I think something that immediately pops the eye is how aggressive Serena is,” she said.“Every match, every point depends on her. She’s obviously a huge hitter, huge serve, huge presence on court. I think that really inspired me.“I see myself a lot in little things that she does. I always try to dictate the point, always try to put pressure to your opponent. Growing up, I really looked up to her on that. I think that was huge.“Since I started playing, it was ‘Serena, Serena, Serena’. I’m glad she’s here. I’m glad also today I could play so well.”