PARIS (AP) - The International Tennis Federation might copy blood-testing measures used by cycling to weed out drug cheats.
ITF anti-doping manager Stuart Miller told The Associated Press in a telephone interview that the federation is working toward more blood and out-of-competition drug testing on players.
Roger Federer and Andy Murray have called for more out-of-competition and blood testing after Lance Armstrong's fall. Murray said the Armstrong example was ``pretty shocking.''
Miller said the ITF is ``looking very, very carefully'' at introducing an athlete biological passport program in tennis.
Cycling and track and field monitor athletes' blood values, looking for telltale indications of doping.