Read the following context and choose the best option to answer the question.
Context: Teaser : Detroit -- Placido Polanco had three RBI Wednesday and drove in the go - ahead run in the seventh inning to rally Detroit past the Los Angeles Angels 9 - 6 . Story : The Tigers scored four times in the last three innings to slow down the Angels ' sprint to the American League West title . Los Angeles ' magic number to clinch the division crown remained at seven .
Question: What does Los Angeles ' magic number refer to ?
Options: 
- None of the above choices .
 - The numbers of the greatest players to play for the team
 - The number of runs that need to be scored to win a game
 - The number of games they need to win to finish in first


The number of games they need to win to finish in first