Chicago Bears LB Jonathan Bostic (ankle) is doubtful for Week 3 against the Seattle Seahawks. DT Ego Ferguson (knee), LB Pernell McPhee (knee) and CB Tracy Porter (hamstring) are questionable, while OG Matt Slauson (thigh, toe) is probable. Bostic did not practice Friday, Sept. 25. Ferguson, McPhee and Porter were limited, while Slauson practiced in full.