Former American tennis star Serena Williams has paid tribute to Rafael Nadal with a touching video after the 22-time Grand Slam champion retired from professional tennis.  Serena posted a video on Instagram in which she can be seen donning a Nadal t-shirt and his signature headband.

She captioned the video, “@rafaelnadal Congratulations on a career that most won’t dare to dream of. I feel so fortunate to have been able to play when you were playing and being Great. You inspired me to be better, to play harder, for fight, to never give up, and to win more.