The jostling, blocking and holding that goes on in the penalty area at corners has become a joke. If any of these challenges happened outside of the box it would quite rightly be called as a foul, so why is it still allowed in the penalty area? To be able to catch a ball as it's entering the six yard box, the keeper needs to be able to get some momentum by taking a few steps before jumping. If an opposition player blocks the keeper then surely that is obstruction?