The ornamental design for the fishing reel, as shown and described.
FIG. 1 is a perspective view of a fishing reel showing my new design;
FIG. 2 is a front perspective view thereof;
FIG. 3 is a rear perspective view thereof;
FIG. 4 is a right-side perspective view thereof;
FIG. 5 is a left-side perspective view thereof;
FIG. 6 is a top perspective view thereof; and,
FIG. 7 is a bottom perspective view thereof.
The broken line showing of portions of the fishing reel is included for the purpose of illustrating environment only and forms no part of the claimed design.