Grunting in tennis can be performance-enhancing for the grunter and performance-hindering for their opponent.
The Australian Open tennis and the recent Ashes Test cricket series show why our sporting stadiums need to be "climate-proofed" to deal with extreme heat.
It seems obvious that a game should be suspended if it's too hot to play, but it's not as easy as implementing a maximum temperature.
Only a few professional tennis players make a stable income, let alone vast riches. Research suggests it's this small chance of a huge payoff that drives players to play professionally
Former tennis star Jelena Dokic's story of disturbing abuse suffered at the hands of her father raises alarm bells about children in elite sports.
Sportswomen still struggle for attention and too many girls are discouraged from taking sport seriously.
Having a baby could provide even more motivation.
After a doping ban, the famous sportswoman has been given an underserved break.
Tennis is as much a mental battle as a physical one.
You can tell quite a lot about whether your favourite player might win or lose from the primal noises they make.
The unpredictability of women's tennis in 2017 should make us strongly question the performance of the official rankings – and not simply the players’ performance.
Just because you were good at sport does not mean you can coach without furthering your qualifications and experiences.
Examining our sporting heroes reveals much about ideas of national identity and who is accepted.
The problem of corruption in tennis is likely to be an ongoing threat. So, it is important that the Tennis Integrity Unit develop into a trusted and convincing anti-corruption team.
Could the broader adoption of the Fast4 tennis format at the professional level prevent the rising trends in match durations, and make the sport more unpredictable?
From Sharapova to the Brownlee brothers, 2016 has given us one step forward to one step back.
The world number one has made some interesting appointments to help Team Murray to the top.
Research has shown that hard times and losses can help athletes perform better.
There are 16 contenders for the 2016 BBC Sports Personality of the Year award... But who is the best athlete?
Many commentators believe that Serena Williams is the greatest female tennis player of all time – but that should be judged not just on Grand Slam wins.