maybe they've done this before
but for
the 70 steelers/ 80 49ers/ 90 cowboys
i would say
70 steelers -3 vs. 80 49ers
70 steelers - 10 vs. 90 cowboys
80 49ers -7 vs. 90 cowboys
how about some nba
2000 lakers/90 bulls/70 celetics
etc
name some other ones ..
just wondering what those lines would be