To get this the easy way, create a single match and set up the opposition to be another controller. During the match, when the opponent gets the ball, run towards them and use the to bump them. I’m fairly sure knocking the player to the ground counts as a heavy bump. The other bonus with this achievement is that it doesn’t all have to be done in a single game, so you don’t have to stress if you don’t get it the first time you try to.
The easiest discovered way to do this so far is play with 2 controllers (1 on each team), keep giving the other team free-kicks and when they are lining up with the man on the mark, wait for the whistle to blow. When it blows, have a man bump the player with the . Repeat 20 times and the achievement will yours.
Thanks and credit to joyous being - http://www.xbox360achievements.org/f...06&postcount=3