Concept:
In a knockout tournament, the total number of teams must be a power of 2 (like 2, 4, 8, 16, 32).
If the number of teams is not a power of 2, byes are given to adjust it to the next power of 2.
Step 1: Find Next Power of 2
Number of teams = 17
Nearest power of 2 greater than 17:
\[
2^5 = 32
\]
Step 2: Calculate Byes
\[
\text{Byes} = 32 - 17 = 15
\]
\[
\boxed{15}
\]