C     Catcher
1B     1. Baseman
2B     2. Baseman    
3B     3. Baseman
SS     Shortstop
LF     Left Fielder
CF     Center Fielder
RF     Right Fielder
DH     Designated hitter
Sub     Substitute
INA     Inaktiv
OF     Outfielder

Pitchers:

Ass     Dein Top-Pitcher
SP      Starting Pitcher
SP2     Starting Pitcher 2. in der Rotation
SP3     Starting Pitcher 3. in der Rotation
SP4     Starting Pitcher 4. in der Rotation
SP5     Starting Pitcher 5. in der Rotation

Long     Long reliever
RP1     Relief Pitcher 1
RP2     Relief Pitcher 2
SM      Setup Man
CL      Closer
MR     Middle relief
SR      Short relief