Now that we are to Week 4 of the fantasy football season, we have to start finding replacements for players who have a bye week. If you are seaching for a fantasy football sleeper for Week 4, here are some good options: QB Shaun Hill, San Francisco 49ers With Frank Gore out this week, quarterback Shaun Hill will probably need to toss the pigskin more than usual. Add in a favorable opponent in the St. Louis Rams and Hill is definitely a sleeper in Week 4. RB Rashard Mendenhall, Pittsburgh Stee...