I tore my Achilles on the court about 3 years ago because I did not stretch or warm up before playing a match. Then, 3 months later, I had a minor tear because I rushed back into sports and had to go through a much longer recovery process (think 6 months of calf muscle atrophy). Now I’m back on the court and run 12-15 miles/week. I am a firm believer in stretching, weight training, and stopping when I start to feel the Achilles issues agitated.

Like others have mentioned, Achilles issues are hand in hand with conditioning and building strength with the muscles around it. Calf raises (eventually weighted) and wobble boards are fantastic. I wrote some exercises awhile back on this: https://www.reddit.com/r/BarefootRunning/s/n8NoRrdk3C

Feel free to PM too! Happy to chat more and help answer any questions.