Arsenal manager Arsene Wenger has called for blood testing to be introduced in football as he is "not satisfied" with the current anti-doping procedures.
The Frenchman recently suggested that there is a doping problem in the game.
In September, Dynamo Zagreb midfielder Arijan Ademi tested positive for a banned substance after his side's 2-1 win over Arsenal in their Champions League group match.
In an interview with beIN Sport, when asked if he was satisfied with the level of testing, Wenger said: "No, I'm not. I'm not satisfied with the level of testing because I believe blood tests should be done. If you want to go into a bit more sophistication you have to do blood checks. Urine checks are superficial and not deep enough to say absolutely sure that we have no doping problem in football.
"I think no and I wish no but on the other hand, can you have 740 football players at a World Cup and come out with zero alert on any doping? It's a little bit surprising. I hope it is true but I think to be completely sure about it, you want to go into deeper tests."
Wenger clarified that he has not witnessed doping in football, but that he has seen some "strange things" during his career as a manager.
Danielle Joynson
