Michigan and Colorado just couldn't wait until Saturday to start duking it out.

The Wolverines will welcome the Buffaloes to the Big House Saturday afternoon for the teams' first matchup since 1997. But the first shots were fired much earlier in the week.

READ: Here's how Michigan football can be ranked No. 1 by Sunday

Colorado kicked off the festivities by tweeting out a fake depth chart filled with celebrities, cartoon characters and movie stars. They tweeted that since Michigan football never releases a depth chart, they would have a little fun with theirs.

More Michigan football headlines:

Here's how the Buffaloes will line up:

Now, we could sit around and debate the legitimacy of Elmer Fudd's arm strength or Eric Cartman's ability to get out in the flat for a screen, but luckily, Michigan football's Twitter account started a GIF war with the Colorado football Twitter account to sum it all up for us.

The Buffaloes kicked things off by bringing up their faux depth chart:

In case you haven't seen this week's depth chart. What and who is in your favorite position? #GoBuffs pic.twitter.com/19qUmVyO6P — Colorado Buffaloes Football (@CUBuffsFootball) September 13, 2016

Michigan fired back with a GIF of Lloyd Christmas, from "Dumb and Dumber," who is listed as Colorado's punt returner for the game. For new GIF users, Michigan was essentially telling Colorado that it doesn't expect to punt on Saturday.

Look forward to seeing your punt returners this weekend! #GoBlue pic.twitter.com/28Y0BU73Qq — Michigan Football (@UMichFootball) September 13, 2016

Colorado brought Jim Harbaugh into the mix.

.@UMichFootball Lloyd Christmas really wants a pair of Harbaugh khakis. Can you hook him up? pic.twitter.com/w2btMKQvN8 — Colorado Buffaloes Football (@CUBuffsFootball) September 13, 2016

The Wolverines gladly kept the Harbaugh train rolling, though they were unwilling to part with a pair of his khakis.

. @UMichFootball not even a one in a million chance? pic.twitter.com/oYr2uNxHTy — Colorado Buffaloes Football (@CUBuffsFootball) September 13, 2016

Michigan responded with "The Dude" Lebowski, who's listed as Colorado's backup "Roamer Dude."

Things escalated quickly after that. Colorado went straight to its big guns, starting with "left tackle" Eric Cartman.

.@UMichFootball quit picking on our punter. Left tackle to the rescue. pic.twitter.com/E78bHLnzHx — Colorado Buffaloes Football (@CUBuffsFootball) September 13, 2016

Backed into a corner, Michigan took a shot at Colorado's star backup safety.

.@RunRalphieRun Better make sure your safety is good to go. Seems a bit fragile. #GoBlue pic.twitter.com/szOZXQj4DH — Michigan Football (@UMichFootball) September 13, 2016

Godfather to the rescue.

.@UMichFootball nobody playing behind this guy should be considered fragile. pic.twitter.com/HZ3Ws9QBCg — Colorado Buffaloes Football (@CUBuffsFootball) September 13, 2016

Colorado also took a jab at its 1994 visit to the Big House, when the Buffaloes won on Kordell Stewart's 64-yard Hail Mary pass as time expired and No. 7 Colorado stunned No. 4 Michigan. Colorado's Twitter account said: "We'll try not to burn the House to the ground ... again."

.@UMichFootball we'll try not to burn the House to the ground ... again. pic.twitter.com/kI2cu7t8z2 — Colorado Buffaloes Football (@CUBuffsFootball) September 14, 2016

Michigan and Colorado will settle things once and for all on the field at 3:30 p.m. Saturday.