‘It’s the Hardest Thing That I Could Ever Imagine’: Serena Williams Pens Bittersweet Goodbye as She Announces Retirement from Tennis Posted byEmily Rella August 9, 2022 Leave a comment on ‘It’s the Hardest Thing That I Could Ever Imagine’: Serena Williams Pens Bittersweet Goodbye as She Announces Retirement from Tennis The tennis star announced her retirement from the sport on Tuesday in an essay published in Vogue.