A Ghanaian tennis photographer has told the BBC that his career has reached new heights thanks to Serena Williams posting his pictures on her Instagram account.

"My phone was buzzing one night. Everybody was calling me to tell me: 'Serena Williams has reposted your photos'," Bernard Nii Bortey told the BBC Focus on Africa podcast.

"I thought 'wow' - it was a big surprise. It took me to another level. Kids now get their parents to call me to see if I am coming to the tournament to take photos.

"They want me to capture them because they think Serena Williams will see the photos. I want to send her a message so that she can come to Ghana again to meet these kids."

Mr Nii Bortey started playing tennis in Accra, Ghana's capital, aged eight after stumbling across a local tennis club.

He went on to receive a scholarship for school due to his skills on the court but was unable to play competitively due to injuries.

Unwilling to give up his passion for the game, Mr Nii Bortey began taking photos of local tournaments. He most recently travelled to Kenya to capture the Billie Jean King Cup.

"I want to shoot one Grand Slam. I want to be the first African to do that. It would be the icing on the cake," he said.

Listen to the full interview here: https://www.bbc.co.uk/sounds/play/p0h3z3c4