Watch how Johnny Manziel, Jadeveon Clowney and other rookies respond to Madden 15 ratings

For highly accomplished college players like Houston Texans' No. 1 overall pick Jadeveon Clowney and Cleveland Browns' first-rounder Johnny Manziel, their Madden ratings for this season did not come without some surprise.

Was Johnny Manziel's reaction to his Madden rating anything like this?

Jeff Gross / Getty Images North America

There's no exact science to how NFL players are rated in EA Sports' Madden series of video games. One typical standard, however, is the rookies who have yet to play an NFL game are initially rated considerably lower than their veteran counterparts.

For highly accomplished college players like Houston Texans' No. 1 overall pick Jadeveon Clowney and Cleveland Browns' first-rounder Johnny Manziel, that did not come without some surprise.

Check out the hilarious reactions of Clowney, Manziel and other NFL rookies to their ratings in the video produced by EA Sports.

For now, the ratings remain a mystery, though EA Sports claims you'll be able to see them beginning Monday.

Madden NFL 15 drops Aug. 26.