- Stories The largest hockey drills database on internet for free! Offensive obstruction example: “shielding the ball from a legitimate tackle with any part of the body” 3 years ago By Pablo Mendoza 2) In the next action, when another defender attempts to take the ball away, the attacker starts to shield the ball and push the opponents in order to protect the ball: Tags: how to, umpire, umpiring Continue Reading Previous Canada’s goalie David Carter: 5 outstanding low savesNext Georgie Parker’s jokes! Laugh it out with the Hockeyroos’ puns Pages: 1 2 3