Magic ball!!

Today I'm going to show you guys two types of breaking balls that we can see in the ballgame.

Cutter and Knuckle ball. Haha~ my favorite ones.

To become a professional pitcher,

it is always not enough to have only one kind of ball type.

Especially in MLB, every pitcher is required to have four fundamental ball types.

Including, fastball, slider, changeup, and curveball.

However, except for those talented or gifted legendary players, 

it is very hard to have only one ball type.

Take the former closer of NYY for example.

Mariano Rivera, the brilliant closer, the only thing he got is cutter.

Weird, isn't it? The reason why is that he specializes in cutter!

Also,the unknown movement confused the hitters,

frequently produces ground balls and strike outs. 

Also, the knuckle ball produces the same effect.

Take a look at RA Dickey's kunckle ball, you will realize the amazing spot!!!

this is how to throw  a cutter

and this is knuckle ball.

Now let us see the movement of this two ball type!

                                            Did you see that?  What a special move!!
                                     
                                      
                                           Beyond discription.....