DETROIT The Detroit Tigers sent 19 players to their alternate training site in Toledo on Monday, leaving 37 players to battle for 30 Opening Day roster spots. READ: How will the Tigers fill their final rotation spots after the Jordan Zimmermann injury? Haase and Rogers were fighting for what figured to be two or three catcher spots on the roster. That means seven of these 13 players will also be sent to Toledo or the taxi squad, while six make the roster. Lets assume its 11, leaving four bullpen spots and two reserve spots open.