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94 A PRIMER OF COLLEGE FOOTBALL
for the other side. He must tackle sure¬
ly and cleanly when he is the last man
between the runner and the goal and a
miss means a touch-down.
The full-back should always play the
middle position. It is too much to ask of
a back to do the kicking and play half
also. Running unquestionably takes the
stuff out of him for kicking. It is the
rare man who does both things well. Some
teams, of course, play the full-back on the
side, but it is questionable policy, and has
often resulted disastrously.
The position of the full-back on the
offence will be generally in the middle of
the two backs or a little in advance of
them, near enough to touch either with
the outstretched arm. His position, of
course, is subject to variations, according
to the formation for the different plays.
In runs around the end, the full-back
will generally be called on either to lead
the interference or to block some partic-