Romeo Beckham could be on the road to becoming a tennis superstar after his coach described him as "extraordinary".
"I'm not sure his parents realise how good he is," Johnson told BBC Newsbeat. "Romeo really loves tennis. He is really into it and very talented.
"He has a lot of talent and very good hand-eye co-ordination. I'm going to have a meeting with his mother about it to reinforce that. Romeo has a natural swing and is very enthusiastic, he just loves it. He kept telling me and I could see how focused he was."
Romeo was enrolled in the Arsenal academy, just like his older brother Brooklyn, but he was recently released.