<Li> A veteran driver in the Indianapolis 500 may still be a Series Rookie if he has not competed in more than three series races overall . </Li> <Li> A driver who has never raced in the Indianapolis 500 but has made a legal season of Verizon IndyCar Series races is still an Indianapolis 500 rookie in his first start . </Li> <P> To qualify as a rookie in Major League Baseball, a player must not have exceeded 130 at bats or fifty innings pitched in the majors, and also fewer than 45 days on the active rosters of major league clubs (excluding time on the disabled list or any time after rosters are expanded on September 1) in their previous seasons . Major League Baseball awards the best rookie with the Major League Baseball Rookie of the Year Award, as voted upon by the Baseball Writers' Association of America . </P> <P> In the National Basketball Association, a rookie is any player who has never played a game in the NBA until that year . The NBA awards the best rookie with the NBA Rookie of the Year Award, as voted upon by a selected panel of United States and Canadian sportswriters and broadcasters . In the NBA, rookies have special contract rules which limit how much a team can pay them as well as limiting the length of the contract . </P>

What is the definition of an nba rookie
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