The 24-year-old is getting healthy, but needs time to regain his feel.
The Italian took a page from Roger Federer's playbook with this perfectly placed tweener on Tuesday.
The 31-year-old Spaniard displays extraordinary movement on the red clay in Monte-Carlo.
Milos Raonic replaces Isner, Richard Gasquet moves up
Last playing a month ago, Maria Sharapova is finding her run of consecutive weeks in the Top 10 in jeopardy.
An in-depth look at Rafael Nadal's remarkable eight-year run as the king of Monte-Carlo.
The 17-time Grand Slam champion is the cover girl for the May issue of Fitness Magazine.