Andy Murray and Novak Djokovic will return to the tour at the Monte Carlo Masters this week after recovering from elbow injuries.
World number one Murray last played in Indian Wells on 12 March, and will resume against Gilles Muller or Tommy Robredo on Tuesday or Wednesday.
"I would not be playing if I felt I was taking a risk," said the Scot.
Djokovic, ranked second, said he "feels great" after coming back with a win in the Davis Cup last week.
Like Murray, the Serb missed last month's Miami Masters with an elbow issue and will play his first clay-court match of the year when he takes on Frenchman Gilles Simon.