I claim the ornamental design for a soccer training sock, as shown and described.
FIG. 1 is a rear perspective view of a soccer training sock, showing the new design with a sock foot portion obscured for clarity of illustration, illustrated in a worn configuration;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a rear elevational view thereof, illustrated in a flat configuration;
FIG. 4 is a front elevational view of FIG. 3;
FIG. 5 is a left-side elevational view of FIG. 3;
FIG. 6 is a right-side elevational view of FIG. 3;
FIG. 7 is a top plan view of FIG. 3; and,
FIG. 8 is a bottom plan view of FIG. 3.
The broken lines showing a soccer ball and a person wearing the design and a cleat in FIG. 1 are included for the purpose of illustrating environmental matter with the invention in use, and form no part of the claimed design.