Mix animations in an 3d Tennis game

I am trying to make an 3d Tennis game. This is my first Unity Game. My game requires multiple animations like running and hitting the ball, making a volley on net, Serving the ball, etc.

I am confused about how to mix multiple animations is Unity. What is the best way to approach the problem. Are blend trees appropriate to do this kind of stuff.

look into animation layers in mecanim.