Overlap sphere Detect Player Tag?

Hey gang trying to detect player with OverlkapSphere, however Debug dose not seem to be printing have I missed a step?
yes all tags and everything is set up correctly

		Collider[] Colliders =  Physics.OverlapSphere(transform.position, RangeRadious);
		foreach(Collider PlayerObj in Colliders){
			if (PlayerObj.gameObject.tag == "Player") {
				Debug.Log ("Attacking Now!");
				Attacking = true;
			} else {
				Attacking = false;
			}
		}

Is the code in the Start or Update?