Catching the football is a combination of extreme concentration and controlled relaxation. You can’t catch the football if you don’t concentrate but you also can’t catch the football if you are stiff as a board when it hits you in the hands! A great player is relaxed enough that when the ball hits him in the hands it sounds like a basketball hitting nothing but net! Being in the zone best describes a player who catches everything thrown his way. He is in that zone that is a combination of concentration and relaxation. Here is great article on how to catch a football.