+Gridiron defines a group of [Team Sports](/wiki/Team_Sports) played on a rectangular field marked with parallel lines, most notably [American Football](/wiki/American_Football). These contact games involve two sides striving to advance an oval ball into the opponent's scoring area.
+## See also
+- [Contact Sports](/wiki/Contact_Sports)
+- [Field Sports](/wiki/Field_Sports)
+- [Ball Sports](/wiki/Ball_Sports)
... 1 more lines