If you search hockey threads over the past year or so, you should see several in which I have participated - and commented on technique. These two samples are a decent start, but you will need to keep at it to improve. Here are my basic tips:
first, use something 100mm or longer @ F2.8 - F4
second, pump your ISO up to 800-1000-1250 or if it's a dungeon in there, all the way to 1600; together with number one, this should allow you to shoot at a SS of 1/250th or higher
third, put your focus point on centre and leave it there
fourth, enable AF-C and keep it there
fifth, select the multiple frames shutter option
then, follow the puck and lay on the trigger once your AF locks....shoot 200+ shots a game and try to get one good one per player
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Rob