I lived in Denver when the Broncos won back to back Superbowls. After one playoff game a local sportscaster interviewed John Elway (one of the greatest quarterbacks ever) and asked, "When things looked bad you successfully connected time and time again with Rod Smith [wide receiver] over the middle for the yardage needed. How were you able to do that with such ease?"
I will never forget John's response: "We would have never been able to make that happen unless we had practiced that play over and over." It hit me at that point; here's a guy who has played football for over 30 years, he's at the top of his game, and he still practices his craft. In fact, you'd be hard pressed to find any professional athlete who only shows up for the game and doesn't practice. Although there are a few who have that reputation, it also negatively impacts their career and team's effectiveness.