not all corners/free kicks will come to your head.
some will roll to the touchline, or be cleared out.
i suggest staying near mid, by the touchline.
and go up for some, give it a go.
If you can't head, and your game is tomorrow, try taking the ball on the chest with one touch, play it down to your feet and lay your friend off at the edge of the box.
If you can't jump that high, I wouldn't advise it.
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