Cooper was informed of the decision shortly after Wednesday 's rodeo and wo n't return for Saturday 's wildcard round to earn a wildcard berth in the $100,000 Sunday Showdown .
Cooper is the 2011 Calgary Stampede champion and reigning world champion .
Cooper , the 2011 Calgary Stampede champion and reigning world champion , was informed of the decision shortly after Wednesday 's rodeo and wo n't return for Saturday 's wildcard round to earn a wildcard berth in the $100,000 Sunday Showdown .