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American
football
known
in
the
United
States
and
Canada
simply
as
football
[1]
is
a
competitive
team
sport
known
for
its
physical
roughness
despite
being
a
highly
strategic
game.
The
object
of
the
game
is
to
score
points
by
advancing
the
football
into
the
opposing
team's
end
zone.
The
ball
can
be
advanced
by
carrying
it
throwing
it
or
by
handing
it
from
one
teammate
to
the
other.
Points
can
be
scored
in
a
variety
of
ways
including
carrying
the
ball
over
the
goal
line
throwing
the
ball
to
another
player
past
the
goal
line
or
kicking
it
through
the
goal
posts
on
the
opposing
side.
The
winner
is
the
team
with
the
most
points
when
the
time
expires
and
the
last
play
ends.
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