back line
noun
variants:
or less commonly backline \ ˈbak-ˌlīn 
\
\
plural back lines
also backlines
Definition of back line
: the group or line of defensive players in some sports (such as ice hockey, soccer, and rugby)
Though it ends with Rolfe and forward Mike Magee, the counterattack can only start if the back line is solid with the ball.— Seth Gruen, Chicago Sun-Times, 7 July 2013
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