27-year old WR Mark Clayton will miss the next 4-6 weeks with a torn hamstring.  It’s up in the air as to whether he will return in time for the season opener.  Clayton played in all 16 games for the Ravens last season and he caught 41 passes for 695 yards (17.0 avg) with 3 TD grabs.  He has now played in 62 games in his 4-year NFL career and he has caught 200 passes for 2,636 yards (13.2 avg) with 10 TD grabs.  The Ravens need to not only get him healthy but also to spur him to step up.  At least Derrick Mason reconsidered his retirement or this injury whould have been much worse for the Ravens.