Oftentimes, there is no more beloved figure on the team than the backup. Fans get to fantasize about what their team would be like if the second-stringer actually got a chance to show what he can do full-time.
Obviously, this happens more often when a team is struggling at a specific position, but good teams have hungry backups that are pining to be the man as well.
Generally, we associate this type of dynamic with quarterbacks, but it goes beyond the signal-callers.
This slideshow identifies 15 guys with their eyes on starting, either for their current club or elsewhere.