Assertion: fullback | /r/CapableOf | stand at the tailof the i
Facets:
Source sentences:
text: Now that most offensive formations have only one or two running backs, the original designations do not mean as much, as the fullback is now usually a lead blocker (technically a halfback), while the halfback or tailback (called such because he stands at the "tail" of the I) lines up behind the fullback.