Oxygen serves as the final electron acceptor during aerobic respiration.
That demand should be little surprise given the leagueâs recent success. In 2011, average MLS attendance hit 17,872 to surpass both the NBA and NHL, and it has since increased to 18,611 fans per game. More impressively, the average franchise is now worth $103 million, up more than 175% over the last five years.
The MLS increases the fee of referees in the final stages of the tournament. Referees in the quarter-finals stage received $2,000 a game. Those who referee in the semifinals were paid $2,800, while referees of the MLS Cup earned $3,500.