FOXBORO -- If you need any indication to know what Bill Belichick thinks is the priority leading up to Week 1, look no further than his press conference transcripts since late July. 

On four different occasions, the Patriots coach has described Jimmy Garoppolo's readiness as the starting quarterback as his "priority." 

However, Tom Brady will start in tonight's preseason game between the Patriots and Bears. It's unknown exactly how long Brady will play. 

Brady did not play in the preseason opener and was not present at Gillette Stadium for last week's game against the Saints as he attended a family member's memorial service. 

Garoppolo saw 39 snaps against New Orleans, completing 11 of his 18 attempts for 168 yards, no touchdowns and no picks. Garoppolo's backup for the first four weeks, Jacoby Brissett, played the entire second half and hit on 7 of his 13 passes for 63 yards, no touchdowns and no picks. 

Though Brady's preseason work doesn't appear as though it will be extensive, he's split practice repetitions with Garoppolo and he's seen plenty of competitive snaps this summer -- both in joint practices with the Saints and Bears, and in two intrasquad scrimmages the Patriots held early in camp.