Juan Martin del Potro has withdrawn from the Miami Masters due to a persistent wrist injury.
The Argentine world number eight suffered the problem during last month's Dubai Masters and was forced to pull out of the recent Masters tournament in Indian Wells.
"It's a pity because this is a special tournament for me since there are many Latin fans and Argentines in particular," Del Potro wrote on his official Facebook page.
"In the next few days I will visit my doctor again to determine the following steps."
The Miami Masters gets underway at Crandon Park on Friday.
