The bill would ban casinos or executives who own professional sports teams from offering sports betting, theoretically counting out Borgata owner MGM because it also owns the WNBA's Las Vegas Aces. It would benefit the Borgata and three casinos owned by Caesars Entertainment. The measure also is full of clauses that would help at least four casinos offer sports betting even though they or their owners have ownership ties to professional sports teams. Internet betting would begin 30 days after the rest of the law takes effect.