Watch the newest trailer for Kobe Bryant's 'Muse' documentary

Kobe Bryant's current battle with Father Time makes his upcoming 'Muse' documentary -- which provides insight into his grueling training and recovery processes, and his relationship with basketball as he ages -- that much more interesting.

In the latest trailer, Bryant discusses how he's used basketball to learn about himself, and how the process -- not the outcome -- is the most important thing to him.

'Muse' premieres on Showtime on Saturday, February 21st.