September baseball has arrived and there is certainly some meaningful baseball to be played. Superstars have been traded and we are beginning to see which teams are contenders and pretenders.
The free-agent class of 2012 is looking very promising at this point but that could all change when the games matter most. Players who will hit free agency this offseason have the opportunity to either make or lose a lot of money this month with their on-field performance.
A disaster September could mean disastrous offers from GMs. On the other hand, a hot bat or arm that is in top form during a pennant race can garner a huge payday for that player.
Here are five ways the free-agent landscape could change in September.