Stefanos Tsitsipas returns to Hamburg with Wimbledon loss still on his mind

WATCH: Stefanos Tsitsipas talks to the press after his first-round Wimbledon defeat.

Stefanos Tsitsipas returns to competition this week at Hamburg, having gone from playing a Grand Slam final to exiting in the first round within a little more than two weeks.

The 22-year-old from Greece was defeated by Frances Tiafoe on the opening day at Wimbledon, the third time in four tries he has not won a round at the grass-court Grand Slam.

"I am still very angry about what happened at Wimbledon," Tsitsipas was quoted as telling press at Hamburg this week, saying he had been aiming to turn around his surprisingly poor record at the All England Club. ''But it did not happen."

It followed the No. 4's defeat in the final of the French Open against Novak Djokovic, where he was two sets up before falling to the Serb.

"There were a lot of physical elements that I was weaker at," Tsitsipas said, speaking with WTA player Andrea Petkovic, who is also doing on-camera interviews during the tournament. "That was the main reason I wasn't able to play at the level I was playing."

But he was more positive about this performance, saying it could help his career.

"It was frustrating and sad," he acknowledged, but pointed to it as possible motivation. ''I think this particular match, I would take it as a strength. I want something different.

"I want to show something better."

Tsitsipas is back on clay at Hamburg as the defending finalist, looking for more time on court following his exit at Wimbledon.

"I didn't have obviously the best performance and that is the main reason I'm here," he said to the ATP website, adding he enjoys the event. "Obviously a lot of good matches I played here, getting to the finals.

"And clay courts, it is one of my favorite surfaces. For me, the transitioning from clay to grass was very difficult, but I think there are a lot of things you have to change—technical, tactical."

Next on the schedule for Tsitsipas is the Olympics on hardcourts, and he's aiming to return to the form which has allowed him to win more matches than any other player on the ATP Tour this season so far.

"I'm motivated for a better second half of the season," he said.

Tsitsipas has two titles this season and seven career titles.