We're all wearing black, the crying has barely stopped and as a mark of respect George has left the country.

Yes, Roger Federer has announced his retirement.

Resident tennis coach Calvin Betton and journalist for i newspaper and inews.co.uk James Gray react to the news, and try to answer the following question...

• If Federer changed the game, how?
• Will he end up joining an elite group of billionaire athletes?
• What is Federer's legacy?
• Will we ever see another player win 20 grand slams across 15 years?
• Could Britain have won their Davis Cup group by dropping Andy Murray?
• Is the new Davis Cup format working?
• Who will win the Davis Cup now?
• Emma Raducanu is grinding the 250s, which is exactly what she needs?
• How much will we see Naomi Osaka in 2023?

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