Roger Federer has responded to criticism from climate change activist Greta Thunberg, saying he is “happy to be reminded” of his responsibilities.

The 20-time Grand Slam champion came under fire from Thunberg last week when she retweeted criticism of bank Credit Suisse for its record of loans to fossil fuel industries.

Federer, who has a sponsorship deal with Credit Suisse, was urged to “wake up” in a Twitter post Thunberg retweeted on her timeline last week.

The 38-year-old, preparing for the Australian Open, issued a statement saying he had a “great deal of respect and admiration” for the youth climate movement inspired by Thunberg.

Federer said he 'appreciated' the reminders of his responsibility as a private individual, as an athlete and as an entrepreneur Federer said he 'appreciated' the reminders of his responsibility as a private individual, as an athlete and as an entrepreneur Federer said he ‘appreciated’ the reminders of his responsibility as a private individual, as an athlete and as an entrepreneur

“I take the impacts and threat of climate change very seriously, particularly as my family and I arrive in Australia amidst devastation from the bushfires,” Federer said.

“As the father of four young children and a fervent supporter of universal education, I have a great deal of respect and admiration for the youth climate movement, and I am grateful to young climate activists for pushing us all to examine our behaviours and act on innovative solutions.

“We owe it to them and ourselves to listen. I appreciate reminders of my responsibility as a private individual, as an athlete and as an entrepreneur, and I’m committed to using this privileged position to dialogue on important issues with my sponsors.”

Federer and Serena up for bushfire relief match

Roger Federer and Serena Williams are among the players to agree to feature in an exhibition to raise money for the Australian bushfire relief efforts.

Federer will join other top players including Serena Williams at charity event Rally for Relief in Melbourne next week, raising funds for the efforts to tackle the devastating bushfires that have killed at least 28 people, destroyed hundreds of homes and decimated wildlife.