Aug 29 - Los Angeles Dodgers slugger Matt Kempexpressed relief on Wednesday and said he was "lucky" to avoidserious injury after slamming into the center-field wall inColorado the previous day while trying to track down a fly ball. Kemp, who needed three stitches for a cut on his chin, waslisted as day-to-day after tests revealed that he suffered onlya sore jaw and a bone bruise to his left knee during an 8-4 lossto the Colorado Rockies on Tuesday. ...