Queen's Club champion Alcaraz remains in groove ahead of Wimbledon

Carlos Alcaraz warned his Wimbledon rivals that he "feels great" on grass after the World No. 2 defied his own expectations by winning the title at the Queen's Club for a second time.

The Spaniard battled to a bruising 7-5, 6-7 (5), 6-2 victory over the Czech Republic's world number 30 Jiri Lehecka in the final of the Wimbledon warm-up event on Sunday.

The 22-year-old also extended his career-best winning streak to 18 matches, putting him in an ideal position to defend his Wimbledon title.

Alcaraz has lifted the Italian Open, French Open, and Queen's Club trophies during his blistering run.

But the five-time Grand Slam champion had arrived in London concerned about his ability to make the tricky transition from the clay-court season to the unique demands of the brief grass-court campaign.

Underlining the difficulty of the task, Alcaraz is the first player to win the French Open and Queen's Club titles back-to-back since Rafael Nadal in 2008.

"I'm going to say it's really complicated, the switch from clay to grass in just few days, because that's the time I had before the tournament began, just two days of practicing," Alcaraz said.

"So I came here with no expectations at all. I came here with a goal to play two or three matches, try to feel great on grass, and give myself the feedback of what I have to improve," he added.

"But I got used to the grass really quick, and I'm really proud about it. My goal was complete, and I'm not talking about lifting the trophy or making the final. It was just to feel great, to feel really comfortable on grass once again."