I recommend working on these two drills on both sides:
https://members.tennisevolution.com/topics/wide-volley-square-up-2/
https://members.tennisevolution.com/topics/wide-volley-square-up/
https://members.tennisevolution.com/topics/back-to-front-39/
https://members.tennisevolution.com/topics/back-to-front-38/
members.tennisevolution.com
Wide Volley Square Up | Tennis Evolution
Wide Volley Square Up | Tennis Evolution
Herman Krackow,
Head Coach