WTA Tour players' parents, agents, coaches and other entourage members must agree to allow criminal background checks if they want full access at tournaments.
The ATP tour has warned players about security concerns at its tournament in Acapulco, Mexico, and has been reassured by Mexican officials that steps are being taken to improve safety conditions.
The head of Serbia's tennis federation says French players should not fear for their safety during the Davis Cup finals.
Organizers of Dubai's tennis tournament say Israeli player Andy Ram will have all the security he needs for the ATP Tour event that starts Monday.
Lleyton Hewitt will join Australia's Davis Cup team for its semifinal match against Argentina despite injuries and safety concerns.